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Evolution of Air Pollution Policies in Two Political Contexts:
Consequences for Los Angeles and Mexico City

Written forResearch Paper for Comparative Urban Policies
Manuel Castells, Professor
January 20, 1993

In this paper I investigate the development of air pollution policies by the American and Mexican governments, and the effects that these policies have upon the spatial form of Los Angeles and Mexico City, respectively. Air pollution policies in Los Angeles are being developed within a privatized capitalist economy, through a series of very powerful regulatory agencies that are partly autonomous from both the state and federal governments. Air pollution policies in Mexico City are being implemented within a system which is state-capitalist. However, the economic structure of Mexico is being privatized by the same government which is implementing significant clean-air policies in Mexico for the first time. The comparison of policy development within these two political contexts helps reveal which explicit and implicit policies have been adopted, and the political choices which have been made in the process of policy development. The comparison is also useful for assessing the effects of these policies upon their respective urban environments.

The Advent of Air Pollution Policies

Severe urban air pollution has occurred in industrialized American cities for more than a hundred years. However, air pollution was identified as a problem that governments could and should ameliorate only after the establishment of both public health policies and fundamental understanding of atmospheric chemistry and dynamics. After the Second World War, both the causes and the potential solutions to urban air pollution began to be discovered. For instance, Dr. Haagen-Smit, an organic chemist at the California Institutue of Technology, demonstrated in 1951 that hydrocarbons and nitrogen oxides react photochemically to produce smog. In 1952, the 'killer fog' in London dramatically illustrated that urban air pollution can be a serious public health hazard: roughly four thousand people died from causes linked this five-day episode of severe, low-level air pollution.
The broadly-based popular consensus that goverments should act to prevent the degradation of the environment gained political force during the 1960s. Air pollution was one of the primary issues, and in the United States, Congress responded by ratifying the Clean Air Act and forming the Environmental Protection Agency (EPA) in 1970. President Echeverria of Mexico also enacted a Federal Law for the Prevention and Control of Environmental Contamination in 1971, in anticiparion of the first United Nations Conference on the Environment in 1972. Environmental protection was considered politically irrelevant in Mexico at the time, and this first law remained unimplemented for lack of political will or public pressure. However, Echeverria tried to establish Mexico as a leader in environmentalism among Latin American countries, at least in intention if not in action.(1)
Several policy approaches have been used by governments since they first engaged directly in reducing urban air pollution. The initial 'command-and-control'-style policies were characteristically technocratic, and often very expensive. American policy history up through the 1970s typifies this style of legislation. 'Command' meant laws and penalties: over the past twenty-two years the U.S. has enacted a battery of regulations to address every specific source and type of pollution. The first laws had substantial results: open-air trash burning was banned, which dramatically reduced particluates. The ban also dramatically increased the size of landfills, simply shifting pollution from the realm of airborne policy jurisdiction to the (then) much more lenient realm of solid-waste management policies without necessarily reducing pollution overall. Power plants were required to reduce sulphur, hydrocarbon, and nitrogen oxide emissions, which led to a general conversion from coal-fired to oil-fired power plants, as well as our tentative affair with nuclear power generation.
'Control' means technological solutions, such as unleaded fuel and catalytic converters for cars, and multi-stage combustion systems in power plant boilers. Automobiles and factories with big smokestacks were two obvious sources of pollution, and the first basic differentiation in types of air pollution regulation was between stationary and mobile sources.(2)
Stationary point-source (known as 'end-of-the-smokestack') regulations are usually tailored for each specific type and source of emission. Over the years the number and complexity of control rules has become immense, and the process of developing new rules is slow. Established industries resent a legal system that constrains them, while new industries can operate unhampered by government until appropriate rules are developed. Environmentalists complain that control measures cannot be developed fast enough to keep up with either new industires or changes in the processes of existing industries. Furthermore, critics point out that command-and-control-type regulations only address the problem of air pollution at the moment that the pollution is generated, without challenging the underlying patterns and practices that result in the generation of air pollution in the first place.(3)
On the bright side, the early era of air pollution regulation in this country did establish clear standards of air quality. Furthermore, policy makers are learning how to create new kinds of policies by understanding the shortcomings of the command and control approach.
Two new methods have been adopted by American policymakers in the last six years, one for development of more effective policies, and the another to reduce the cost of policy implementation. To develop policy, American regulators have begun to use exposure-based criteria rather than emission-based criteria. To implement policy, regulators are now developing incentive-based methods to replace or augment the traditional proscriptive means of enforcement.
The exposure-based method of air pollution policy development arose from a reexamination of the fundamental purpose of such policies: to protect the health of the public. On reconsideration, we are not directly concerned with the quantity or toxicity of emissions, nor are we actually concerned with the quality of the air for its own sake. We are most directly concerned with breathing polluted air, and the consequences of those inhalations upon our health. The conceptual distinction between emission-based and exposure-based policies may seem slight, but it has profoudly affected the way we now conceive of air pollution regulations. An example is the relatively new concern with indoor air pollution and 'sick' buildings. Since Americans spend most of their time in buildings and automobiles, most of the air that we breathe is indoor and in-car air: this, specifically, is the air that directly affects our health. We may inhale more pollutants from secondary cigarrette smoke and carpet adhesives than we do from nearby heavy industries.(4)
Using market incentives to encourage private businesses was first proposed more than forty years ago. However, the legal mechanisms for implementing "smog exchange" programs were only approved Congress in 1990 through amendments to the Clean Air Act.(5) The AQMD has just gained approval to develop a pollution-rights exchange program last year, and they are in the process of setting up the system with the businesses that will be involved. Basically, polluters will be allotted a certain number of pollution 'credits' based on historic levels of emission of nitrogen oxides, hydrocarbons, and sulfur oxides. Each type of gas will be treated separately, so three 'exchanges' will operate simultaneously. Every year the number of credits allotted to that company will decrease by a fixed percentage. However, companies will be able to sell or buy credits from each other, so that the overall quantity of emissions will decline, but within the overall allowance, companies can negotiate with each other to reduce at varying rates by whatever means they choose, depending upon the relative cost of emissions-reduction to each company.
Numerous problems exist with this program: how are 'historic levels of emission' established? How will small businesses be protected from the deep pockets of the bigger corporations, or will they simply be bought out of operation in short order? Supposedly, the system will save on the public cost and hassle of administering cumbersome command-and-control regulations. But will the exchange process be any more efficient to administer? Won't this new system still have to be enforced by inspection, just as air-quality regulations always have been?
The impact of the pollution-exchange program upon the urban environment remains uncertain, as the rules are still being negotiated. It is therefore beyond the scope of this paper.

Los Angeles was not so environmentally fortunate as other American cities. The tendency for thermal inversions to trap air in the Los Angeles basin is now world-famous, along with the legacy of the automobile-oriented planning policies that prevailed during the era of Los Angeles' massive growth. The result of these natural and manmade conditions is that nearly ten million cars are driven one hundred million car-miles per day within a volume of air which can remain stagnant over the city for several days. Furthermore, Los Angeles experienced the mixed blessing of sustained industrial growth throughout the 1960s and 1970s, in an era when general deindustrialization across most of the U.S. made it even easier for older American cities to meet federal air quality standards set by the EPA. To deal with air pollution in Los Angeles, a combination of local, regional, and federal agencies operate sometimes in conjunction, sometimes in opposition to each other in the effort to someday make the air over Los Angeles comply with federal standards on a regular basis.
The main air pollutants of concern in both Los Angeles and Mexico City are nitrogen oxides, hydrocarbons, sulfur oxides, particulates, and toxins. The smog resulting from the photochemical reaction of hydrocarbons and nitrogen oxides is only one but the most notorious of these pollutants, both because it can be seen and because the gases that create smog are produced by the everyday automobile. It is symbolic of our mutual complicity and culpability in generating air pollution. Ozone, the invisible component of smog, is also destructive on a wide scale. Ozone damages human lung tissue, and the leaves and fruits of many plants: crops such as tomatoes, lettuce, string beans and cucumbers are no longer grown in the Los Angeles air basin because ozone damage either kills them or renders them commercially useless. The California Air Resources Board conducted a study of lung damage in young adults by examining the lung tissues of accident and homicide victims. Nearly all of the victims showed some degree of chronic bronchial irritation, and "about one-third of the subjects had some degree of chronic interstitial pneumonia, a form of the disease found deep within lung tissue."(6)
Each of the major air pollutants is generated by a variety of types of activities. Although the relative contribution of each activity to a given type of pollution has been inventoried, polluters are not simply asked to reduce their contribution to the problem on an equal basis. One reason is that the costs and social implications of of reducing pollution can vary widely depending upon the type of activity; another reason is that different agencies have jurisdiction over mobile and stationary sources of pollution.
The sources of nitrogen oxides and hydrocarbons exemplify the complexity of the problem. The two gases are produced by cars, trucks, trains, ships, and aircraft (mobile point sources); by oil refineries and power plants (stationary point sources); by lawnmowers, lighter fluid, and drying paints (non-point sources); by bakeries and fast food restaurants; by furniture makers; and by any manufacturer who cleans products with solvents, from Hughes Aircraft to the maker of childrens' eyeglasses and medical instruments.
Ironically, personal care products have recently become a significant source of both gases as product manufacturers have replaced chlorofluorocarbons with nitrous oxide and propane as propellants in aerosol cans. They may be helping preserve the upper ozone layer and its uv-absorbing capacity, but they are also contributing to the generation of ozone near the earth's surface, where it is highly destructive to living organisms. A similar variety of types of sources that produce particulates and toxins makes the reduction of all of these pollutants an extremely complex undertaking.

Policy Development in Los Angeles

By the late 1960s, policy makers in Southern California were well aware that they faced a uniquely difficult situation. Dr. Haagen-Smit began his illustrious career as the 'father of smog' by searching for a mysterious disease that was damaging crops in the Los Angeles area in the late 1940s; hence his first discovery of the effects and sources of ozone. In 1968, the state combined the Bureau of Air Sanitation (formed in 1955) with the Motor Vehicle Pollution Control Board (formed in 1960) to create the statewide Air Resources Board, and Dr. Haagen-Smit was named as the Board's first director. The primary task of the Board is to regulate mobile sources of pollution and set overall air quality standards for the state, while local Air Pollution Control Districts have responsibility for stationary sources.
During that same year Congress began deliberating on air quality legislation that would become the Clean Air Act. The Air Resources Board sent James Birakos, spokesman for the Los Angeles Air Pollution Control District, to negotiate for the right of California to enact separate, stricter legislation. When the Clean Air Act was ratified by Congress in 1970, California was unique in that it was granted autonomy to develop policies and laws independently from the federal EPA. ARB policies had to be approved by the EPA, but until recently this stipulation has proven to be only a formality.(??)
In 1977 the Los Angeles Air Pollution Control District was reorganized and expanded into the South Coast Air Quality Management District (SCAQMD or AQMD for short), and Birakos was appointed the District's first director. AQMD has jurisdiction over metropolitan Los Angeles and the air basin that it occupies, including Los Angeles and Orange Counties, the western portion of Riverside, and the southwestern portion of San Bernardino Counties. SCAQMD still accountable to the California Air Resources Board, and thereby ultimately to the federal EPA. The result of this multilevel regulatory structure is a distribution of both authority and accountability which is essential to the process of air polluton policy development in Los Angeles.
SCAQMD negotiates directly with businesses, utilites, and local governments in order to develop policies which are appropriate and responsive to the situation in greater Los Angeles. Since many activites generate each of the primary components of Los Angelean air pollution, polluters who can organize into lobbying groups try to emphasize the relative importance of their activity, and the difficulties they face in trying to reduce their share of emissions. Large businesses such as oil companies and military contractors exert tremendous pressure on the AQMD, to make compromises that serve their interests. For instance, a local manufacturer like Hughes, Lockheed, or Arco can make a convincing argument that excessive regulation will make business unprofitable for them; forcing them to move operations out of the region. This will (and has) cost thousands of local jobs and hurt the local economy. Corporations argue that if tighter regulations are applied to automobiles, utilities, out-of-state trucks, ships, or other (smaller) businesses, they could be granted relief. Local city and county governments are prone to side with the major employers in their communities, who provide their tax base. Local authorities also resist the idea that any regulatory agency should have the right to interfere directly in their affairs, usurping local autonomy.
Therefore, AQMD is prone to strike compromises and develop less-than-ideal policy proposals. These proposals, however, must pass the review of the Air Resources Board in Sacramento, somewhat removed from the pressures of powerful local lobbies. The subtle difference between being a part of the Air Resources Board and being accountable to the Air Resources Board becomes extremely important in this negotiating process. No doubt, local authorities and business leaders appreciate having an autonomous local agency that is responsive to their particular needs and problems, but if they force the AQMD to compromise too much, then the ARB will send them back to negotiating table to strike a legally acceptable compromise.
Enforcement of air pollution policies in California continues to be effective because the Air Resources Board is not only administratively autonomous from the Federal government; it is also fiscally autonomous from both the federal alnd state governments. The ARB receives $6 from every automobile registration fee; it also receives various payments from companies that use air-polluting substances, in the form of surcharges for use of the substances and from large fines for noncompliance. Fiscal autonomy makes the ARB relatively immune to short-term political compromises and fiscal crisesin California, including the present one. The EPA, on the other hand, has suffered considerably over the last twelve years under a federal administration unsympathetic toward environmental protection. The Reagan administration drastically reduced the budget of the EPA, crippling the agency's ability to enforce the very laws that it had created. This loss of federal-level backing could have undermined the authority of the ARB; instead, the Board has continued to fund and conduct primary research into new ways of reducing pollution on its own, while the EPA has languished. In fact, over the last twelve years the ARB has superseded the role of the EPA to a large degree in that other states have begun to look to the California agency as the leader in air pollution policy develoment in the United States.(8)

The Community Right-to-Know Act and the Air Quality Management Plan

Despite the attitude and intentions of the federal administration, air pollution policies in Los Angeles gained tremendous force, publicity, and notoriety in the late nineteen-eighties. Congress reacted to the Bhopal disaster by passing the Emergency Planning and Community Right-to Know Act in 1986. The Act requires businesses to publicly list toxic and polluting substances that they use, and to prepare risk-assesment plans to their neighboring community about the dangers that the business might pose.(9)
In that same year a federal judge ordered the AQMD to develop a plan by which Los Angeles could achieve compliance with the Federal clean air standards by 2007. The intervention of the federal court into the process of air pollution policy development began in 1983, when Mark Abramowitz filed suit in Federal court against the EPA for failing to protect his health by enforcing the Clean Air Act in Los Angeles. The Act specifies that all cities must comply with federal air quality standards, which Los Angeles consistently fails to do. Abramowitz won, and in 1987 the Ninth Circuit court ordered the agencies directly responsible for air quality in Los Angeles to implement a plan that would reduce pollution levels to meet federal standards within twenty years.
The responsibility for developing this plan fell to the AQMD. Over the next two years they developed the Air Quality Management Plan which was approved by the ARB in 1989, despite tremendous resistance from businesses and local authorities. In this instance, ARB delayed approval of the plan until the AQMD could demonstrate that it had the general agreement and cooperation of all the parties that would be involved in making the plan succeed, including oil companies, power utilites, manufacturers, and local governments. AQMD took the negotiating stance of being caught between a rock and a hard place: their personal contacts in Los Angeles might be able to demonstrate the hardships that they would suffer under tighter legislation, but the AQMD's ability to compromise was constrained by the federal court order Whether one regards the AMQD as being caught between a rock and a hard place, or whether that rock was simply a rhetorical bludgeon that AQMD used to pummel the hard place into compliance is a matter of interpretation and opinion.
The Right-to-Know Act has been an effective tool of policy implementation by entirely different means than the explicit recommendations of the AQMP. Once businesses were required to publicly disclose the toxic and polluting substances that they use, many businesses decided to reduce or eliminate the use of such substances out of embarrassment and concern about public reaction in their local community. No inspections, no fines, no court cases were required. Industries not only have to disclose which dangerous substances they use, but they must also prepare an assessment of the risks their operation poses to the surrounding community. Therefore, local zoning and planning commissions will be able to judge the potential noxiousness of industries with much more precision.
At the same time, the increasing cost of using toxic (and therefore regulated) substances is making environmentally-sound substances more cost-effective. The most important of these is the substitution of water for petroleum-based solvents in paints, adhesives, and finishes. Since water-based industrial products have become cost-effective, many small industries have become essentially non-polluting, such as furniture makers.

Mexican Policy History

Today Mexico City has the worst urban air pollution in the world. In the last six years the severity of the pollution in Mexico's capital has gained worldwide notoriety, due to the deaths and frequent hospitalization of shcoolchildren during the winter months, when thermal inversions in the Valley of Mexico are most severe. Like Los angeles, Mexico City is situated in an air basin surrounded by high mountain ranges. However, the floor of the valley is more than seven thousand feet high, and the thinness of the air makes combustion less efficient. Because of the relative scarcity of oxygen, the same car would emit more hydrocarbons in Mexico City than in Los Angeles. But the cars, in fact, are not the same: until 1991, automobiles in Mexico were not required to include emission control devices that ensure complete combustion of hydrocarbons, nor was unleaded gasoline available in Mexico City until 1990. Hence, only about one out of five residents of Mexico City, but automobiles were the source of about eighty per cent of the air pollution over the city in 1990. Lead has become so concentrated in the capital that in a recent study, 70% of newborn infants had unnacceptably high levels of lead in their blood. During recent winters, ozone concentrations have occasinally risen three times as high as the acceptable maximum level set by the World Health Organization, and have often risen to double the standard limit. Respiratory ailments have become a leading cause of death in the city.
Much of the pollution in Mexico City is a consequence of the Federal Government's sustained policies of economic development and centralization. In 1946, President Miguel Aleman embarked on a campaign of rapid industialization, which has remained a high priority for every succeeding president. During the 1970s the government succeeded in substantially expanding the industrial sector, especially in Mexico City. Economic growth meant, up until 1981, a rising standard of living for Mexicans. Increased purchasing power means that proportionally more Chilangos--residents of Mexico City--can afford to buy cars. Automobile ownership in Mexico City is increasing at an even greater rate than the urban population as a whole.

Episodes of severe air pollution began to gain publicity in the winter of 1985-1986. However, serious concern about environmental degradation had arisen by the beginning of the decade. When Miguel de la Madrid assumed the presidency in 1982, he promoted the powerless and insignificant environmental undersecretariat that Echeverria had formed in 1971 into a full secretariat. By combining it with the , de la Madrid institutioalized the link between environmental protection with issues of urban development.
Unfortunately, de la Madrid was never able to implement his environmental program. The debt crisis of 1981 preoccupied most of his six-year term, as he tried to mitigate the economic damage and comply with austerity measures imposed by foreign lenders. However, de al Madrid laid the groundwork for his chosen successor, Carlos Salinas de Gortari. Not only did he form SEDUE, but he also enacted a new General Law for Ecological Equilibrium and Environmental Protection in the last year of his presidency. EPA officials compare this law favorably with comparable U.S. regulations.

Carlos Salinas de Gortari

Like his predecessors, President Salinas is heavily committed to economic development. If he succeeds in his effort to obtain a North American Free Trade Agreement (NAFTA), the economy of Mexico may grow tremendously in the future. Salinas may follow through with his intention to require new industries to locate outside of the Valley of Mexico, but if his economic programs succeed, the resultant growth in the economy will enable an even larger proportion of the Mexican population to afford automobiles.
Unlike his predecessors, though, Salinas faces unprecedented challenges to his authority and legitimacy from both an emergent political opposition led by Cuauhtemoc Cardenas and the Revolutionary Democratic Party (PRD), and from the environmental crisis in Mexico City itself. These challenges have both forced and enabled Salinas to implement rigorous air pollution policies in Mexico City for the first time.
The elections were a powerful demonstration of the Mexican peoples' disenchantment with the party of Salinas and his predecessors, the Institutional Revolutionary Party (PRI). The purchasing power of the average Mexican declined by half between 1980 and 1988 due to the tremendous foreign debt incurred in the 1970s, and subsequent austerity measures imposed by foreign lenders.(11) The resulting decline in the average living standard certainly contributed to the unhappiness of many Mexicans. However, public dissatifaction was also directed against the chronic corruption of the PRI, and, in Mexico City, against the failure of the government to act on environmental issues: in the Federal District, even the PRI admits that Salinas did not win the majority of the presidential vote.
Nationwide, Salinas only received 50.3% of the vote, and his election as president was only conceded reluctantly by Cardenas and the PRD. The authority of both Salinas and the PRI as a whole were extremely vulnerable at the moment that he assumed the presidency. Salinas' first act, therefore, was to establish his personal credibility by acting quickly, dramatically, and symbolically against corruption: he singled out Joaquín Hernández Galícia, the head of the powerful and corrupt national oil workers union. By arresting "la Quina," Salinas not only succeeded in establishing his personal reputation, he also sent a clear message to private businesses that he would not protect organized labor or favor state enterprises.# Furthermore, the crackdown was the first of several steps that Salinas would take to transform Petróleos Mexicanos from an intransigent and entrenched state-owned monopoly into an instrument for implementing his environmental reforms.(12)
Salinas is committed to environmentalism for a number of reasons. Like his presidential predecessors Etcheverria and de la Madrid, Salinas recognizes the importance of progressive environmental policies in promoting the prestige of his administration both domestically and internationally. Not only does he want to present Mexico as a leader among Latin American nations; he wants to transform Mexico's reputation into that of a first world nation.
Salinas is also very sensitive to issues and pressures in the United States, because above all else, he has staked his political future (and possibly that of his successors) on the NAFTA. American businesses want Mexico to adopt comparable regulations for their own industries, so that Mexican products will also have to include the increased costs of clean production processes. The incoming Clinton Administration is pushing for stricter environmental legislation as a conditon to implementing NAFTA not only because of their ideological convictions, but because of public sentiment and the highly directed pressure of non-governmental organizations such as the Natural Resources Defense Council and Greenpeace.
Salinas is in a better position to implement environmental programs than his predecessors because of a growing public consensus that something must be done by the government to improve the environmental situation in Mexico City. In fact, the political future of Salinas' successor, Manuel Camacho Solis, depends upon it. Following PRI tradition, Salinas has handpicked his protégé, and appointed him as mayor of Mexico City. Solis' performance in this post will either generate or destroy the public support he will need to succeed Salinas as President. In an unusual move, Solis has decided to stay on as mayor for six years rather than the usual three: in staking his political future on his success as mayor, Solis seems to be betting that successful handling of urban problems in the capital; and as the Mexican press says, that means that his future "is in the air." The marriage of political futures to environmental reform was underscored by Salinas' appointment of Luis Donaldo Colosio, former the head of the PRI, as Secretary of SEDUE. Along with Solis and the Secretaries of Education and Trade, Colosio began to be considered a potential successor to Salinas only after he had been given this now-prestigious post.(13)

Subduing Pemex

Salinas gained the full cooperation of Pemex through two strategic acts. First he closed the Eighteenth of March refinery on its namesake day in 1991, and then he restructured Pemex following the Guadalajara disaster of April 1992. Like his crackdown on the oil worker's union, Salinas' closure of the Eighteenth of March refinery was charged with symbolic meaning. One of the largest and oldest refineries in Mexico, it had symbolized Mexico's sovereignty from its powerful neighbor and enemy to the north. The refinery was named for the day that President Cardenas nationalized the oil industry, wresting control from American investors in 1937. The refinery also represented aging, polluting industry, though: out of 35,000 industries emitting 15% of the pollution in Mexico City's air, the refinery alone emitted more than a quarter of that fraction.
By closing the refinery, and especially by firing all of the workers outright rather than finding new jobs for them, Salinas reiterated his message to the company: downsize. Overall, Salinas fired 20,000 Pemex employees in 1991, and 30,000 in the previous two years, paring the monopoly down to only 150,000 employees.(14)
The explosions of sewers in Guadalajara on April 28 and 29, 1992 killed almost two hundred people. The public soon found out that Pemex had been dumping volatile wastes into the city sewers; the monopoly was disgraced by the incident. Salinas took this opportunity to restructure Pemex.(15) Exactly what he did to the leadership within the company is unclear, but an AQMD executive who has worked with SEDUE for several years marvels at how eager Pemex executives are to cooperate with or even initiate environmental programs now.(16)
Experts both in Mexico and outside agree that, aside from the change in the power relationship of Pemex and the government, Salinas' restructuring of the organization was primarily cosmetic. Ostensibly, Pemex was broken up into four units: exploration and production, refining, gas and basic (Necessary) petrochemical products, and secondary petrochemical products. An breakup of the company be helpful in allowing the sectors of the company to be more flexible and relocate outside the Valley. If Pemex is actually broken up and privatizated, which economists expect if NAFTA goes through, may also mean that the Mexican government will lose its one effective means of implementing environmental policies through the company: by owning a controlling interest in it.
It seems extremely unlikely to me that Salinas or any future president would privatize Pemex, because the federal government is financially dependent upon it. In 1991 Pemex paid 90% of its profits--$15 billion--to the federal treasury. The government, in turn, only alotted $3.2 billion to Pemex for investment in 1992; not enough to enable the company to build a new refinery. Without the funds to invest in its physical plant, the company cannot relocate refining out of the Valley of Mexico, nor can they substantially improve the cleanliness of their operations within the Valley. Furthermore, Mexican investment laws do not provide a high level of security to foreign investors. Therefore, upgrading and relocation of facilities cannot even be underwritten by foreign investment. As an indicator of the low level of foreign investors' confidence, one sector of Pemex--secondary petrochemical products--has been open to foreign investment for six years, and private firms have only invested in the production of four out of fifty-two products open to investment. However, investors seem to consense that the climate for investment--in Pemex and overall--will improve substantially if the NAFTA is agreed upon.(17)

The 1990 Plan

While working behind the scenes to gain control of Pemex, Salinas also enacted sweeping programs to reduce air pollution in Mexico City as soon as possible. Many new regulations, therefore, were diercted at reducing and mitigating the effects of automobile use. The ability of the Mexican government to enact laws infringing upon civilian life as well as businesses was used to its best advantage. Salinas had already enacted the Day-Without-a-Car program in 1989, requiring everyone to leave their car at home for one day of the working week, and on certain weekend days. In the 1990 plan, he announced that the ban would be extended to two days a week during severe smog episodes, and that certain industries would subject to the same type of program. Other steps included reducing the sulphur content of diesel fuel by 80 percent by 1993, and increasing production of unleaded, 92-octane gasoline. The government hopes that by 1994, 49% of gas used in the metropolis will be unleaded. Further measures included expanding the subway, streetcar, and trolleybus system; replacing 1,750 city buses with cleaner-runnung vehicles; improving city access roads, ring roads and traffic lights to reduce congestion; expanding suburban parking lots to encourage public transportation to the city; expanding anti-contamination checks on all vehicles; and convering delivery vehicle engines from gasoline to natural gas.
In the plan, Salinas also required industries that use fuel oil to switch to more expensive diesel fuel. As it happens, Mexico's domestic oil fields happen to be high in sulfur, and therefore so is Pemex's fuel oil. Mexico also has significant reserves of natural gas, and Salinas had originally intended to require industries to convert to this very clean fuel. Unfortunately, Mexico City does not have a network of pipelines to distribute natural gas, and it is considered prohibitively expensive to install. Therefore only electrical utilities will begin converting to natural gas for the time being.(18)
The plan also calls for planting 170 million trees.

Reforestation in Mexico City

In addition to the types of pollution which Angelenos face, Mexicanos also breathe disease-laden airborne dust. During the winter, strong winds (tolvaneras) are a mixed blessing: they break up the thermal inversion layer, alleviating the smog; but they also pick up tons of contaminated dust from street and landfills. The root of this problem lies in the high cost of municipal infrastructure. As with the subway system and natural gas distribution network, the Mexican government simply cannot afford the cost of extending the road paving and sewage systems fast enough to keep up with the rate of growth of Mexico City. Therefore, human waste is left to dry on the streets, especially in unrecognized squatter areas where there are few municipal services at all. Sunlight effectively kills most fecal microbes, and turds quickly break down into dust. Unfortunately, a few hardy germs can survive sunlight and dessication: e colii, hepatitis, and certain amoebic and protozoan parasites such as giardia. They are spread along with the rest of the dust.(19) Angelenos, like Chilangos, suffer from chronic irritation due to airborne particulates, which make the lungs more susceptible to infection; but in Mexico City, infections may come from the dust itself.
The long term solution to airborne diseases and dust in Mexico City will be to drain and pave the existing urban environment, and to continue extending these services as the city expands. Considering the current economic condition of Mexico, the first objective will be exeedingly difficult to achieve; and to keep up with the pace of urban growth may be virtually impossible.
For the time being the Mexican government seeks to reduce airborne dust by reforesting the city. Trees stabilize the soil and break the wind;(20) they are also relatively inexpensive to plant and a visible symbol of governmant action. However, trees are often cut down to provide both building material and cooking fuel; therefore, the government maintains an incentive program trhough follow-up inspections of planted trees. Each year a government inspector will reimburse residents who have maintained trees planted upon their property(21)
Eventually, such a cash-incentive system will fail either because so many trees will have been planted that regular inspections will become unfeasible. Or, the value of the trees will become so great to their owners that the cash incentives needed to convince an owner to keep a tree standing will become unfeasibly large. Perhaps if the city plants trees along its own rights-of-way and protects them by threat of fine, the city-owned trees might become large enough to provide substantial protection on their own by the time the private trees have become too valuable to protect.

The Solidaridad Program

In another astutue policy decision, Salinas linked privatization of industries with government provision of services in the very popular Solidaridad program. The program consists of building infrastructure with capital obtained from the sale of state-owned enterprises. Salinas stands apart from his predecessors in that he does not equate industrialization with economic development. Presidents Echeverria and Lopez-Portillo nearly brought the country to financial ruin by borrowing heavily from foreign lenders to carry out industrialization programs in the 1970s. In this respect he agrees with American economists; whether both are right remains to be seen.

Overall Effects of Air Pollution Policies

Regulating Automobiles

Automobile use stands out as one of the most problematic activities because of both the tremendous amount of pollution generated by automobile use and the great difficulty which regulators face in trying to either reduce or fundamentally alter automobile use. Ultimately, air pollution policies that affect use of the automobile will have the greatest impact upon the urban form of Los Angeles, and a substantial effect upon the urban pattern of Mexico as well.
The social implications--and political challenges--of enacting automobile regulations in Mexico contrast sharply with the situation in Los Angeles. In Mexico City, only a wealthy minority can afford to own a car. So to restrict cars is to impose upon the lifestyles of the wealthiest, most influential class in Mexico, which happens to be concentrated in the one region of the country where restrictions on the use of the automobile are most needed. This unfortunate coincidence has made it politically hazardous to enact restrictions upon automobile use.
However, President Salinas began the Day-Without-a-Car program in 1989, and the public has been very supportive. In 1994, Mayor Solis will also enact a program banning cars over ten years old from the city. The regulations are archetypically command-and control, but they may be more effective than comparable regulation in Los Angeles. An exceptinally high proportion of very old automobiles are still being driven in the Los Angeles area, one third of them being old enough to predate most or all emission control devices. But the only program that has been implemented to remove older cars from circulation was small, voluntary 'cash-for-clunkers' program by Unocal.
The Day-Without-a-Car program may be much more effective than its closest Los Angelean counterpart, the AQMD's program to get larger employers to reduce trips generated by employees commuting to work. The Mexican program is intended to reduce all intraurban journeys by one fifth. The effectiveness of the Mexican program is weakened by those who buy an additonal car to circumvent it, and because trips that can be made on any given workday, such as shopping, are not reduced but simply rescheduled. Nonetheless, Hoy No Circula must give all automobile drivers pause to reconsider their dependency upon automobiles. The inconvenience of that one--and occasionally two--days out of five is far more likely to induce Chilangos to modify their commuting patterns than any program which American agencies are likely to be empowered to implement.
On the other hand, the day-without-a-car program will increase the class distinction between those who can and cannot afford to own cars in Mexico City. Only the very wealthiest Mexicans can afford buy a second car to use on the day when the first one cannot. The banning of ten-year-old cars discriminates against those who have just barely enough money to afford one used car.
Another purpose of both of these measures is to reduce traffic congestion. Until recently, both the public and the government would have assumed that it is the governments' role to alleviate traffic, by building more roads and increasing the carrying capacity of the road system. By asking and encouraging the public to drive less, governments have begun to depart from a strictly utilitarian view that they are obliged to maintain infrastructural services simply in resronse to public demand. Although government agencies will continue to be under tremendous public pressure to maintain and upgrade traffic networks, this pressure is now counterbalanced not only by the usual financial constraints, but also by the new governmental obligation to weigh the environmental consequences of aiding and abetting an increase in automobile use.(23)

The Return of the Electric Car?

The AQMP requires automakers to begin selling a minimum proportion of low-emission vehicles out of the total number of vehicles that it sells in the Los Angeles market. The precedent for this type of request was the ARB's requirement that catalytic converters be included in all cars sold in California in the early 1970s. The automotive industry complained bitterly at the time, but the California market--indeed, the Los Angeles market alone--is so large that they were unwilling to give up their share, and they complied.
Acceptable alternative fuels, for the time being, are compressed natural gas, propane, and methanol, or electric cars. Preparations to accommodate widespread use of electric automobiles are being considered by municipal planners. For instance, businesses may be required to provide electrical outlets in employee parking areas, since with existing battery technology, electric cars have to be recharged a trip of any significant length.
A major shift to the use of alternative-fuel vehicles will not substantially cahnge the patterns of either air pollution regulation or automobile use. However, widespread adoption of electric cars would have several effects: the first will be a shift in the method and location of energy generation, and a corresponding shift in the types of air pollution policies applied. Electricity is normally generated at large, fixed-point power stations, be they coal, oil, gas, uranium, sun, or water-powered. Even fusion power, if it can be harnessed for commercial use, is likely to be contained within large, stationary facilities.
Methods of monitoring the pollution generated from electric power stations is very different from the process of monitoring and regulation of emissions from hundreds of thousands of private internal-combustion engines. Stationary, point-source emitters are usually a large companies, which are more easy to regulate and make publicly accountable.
The adoption of both electric cars and low-emission vehicles is also likely to change the way that the urban environment is perceived and used. Electric automobiles are slower, and propane and compressed-gas cars are restricted in range, but neither of these shortcomings should be a problem for daily commuters in the Los Angeles area. It does, however, have a symbolic difference, which may make it difficult to popularize electric cars and sell them to the Southern Californian public.
Those who use alternative-fuel cars may have to live closer to work, but the change in residential location relative to workplaces can easily be accommodated within the existing built pattern of the city. A much more important impact will be that electric car users will have to keep the number of daily trips to a minimum, to allow for recharging. Whether current employment practices will accommodate this need is another matter.

Air Pollution Policy and Land Use

In Los Angeles, air pollution policies will most directly affect urban spatial patterns by altering land use regulations and practices. The Air Quality Management Plan is the first program in the United States in which an agency created to mitigate urban air pollution has explicitly included land-use policies as a necessary component for achieving its goals. When the SCAQMD was in the process of adopting its air quality management plan, the state-level Air Resources Board refused to give it final approval until "the AQMD could demonstrate that it had commitments from cities and counties to make sure tht all of their decisions affecting growth, zonong, housing, transportation and other planning actions conform with the Air Quality Management Plan and do not interfere with the basin's progress in attaining the Clean Air standard."(24)
The power to control use of land is one of the pillars of local authority in the United States, so any such plan is likely to meet with fierce resistance. Previous air quality plans had included conformity provisions, but "a number of local governments fear that this time the AQMD may usurp control enjoyed by cities and counties to develop and grow." Of these local planning agencies, the Los Angeles County Department of Regional Planning is one of the most powerful; and their reaction to the plan was "the Department opposes the use of the Air Quality Plan to assault local land use planning and regulatory authority."(25)
The extension of the authority of the AQMD into specific, physical-form issues is a very awkward, unpopular process, illustrated by a conflict that arose between the AQMD and the Southern California Association of Governments (SCAG). In the fall of 1989, the state legislature intended to increase automobile-license fees by four dollars each in order to raise funds for street improvements. The improvements were specifically intended to make traffic move more efficiently in order to reduce air pollution, not necessarily to 'alleviate traffic.' Since AQMD was responsible for smog abatement, the legislature decided to channel the funds through them, not through any of the various levels of agencies normally responsible for roadway maintenance and improvements. SCAG members resented this decision, since they were the governmental body vested with the responsibility for coordinating planning with the cities and counties of greater Los Angeles. Furthermore, SCAG directors were elected officials whereas the AQMD board is appointed by the governor; and it was suddenly being given the funds to implement programs should be the responsibility of the SCAG.(26)
Last year the AQMD required a proposed mall in the San Fernando Valley to be reduced in size, because the environmental impact analysis of the proposal demonstrated that the mall would generate too much traffic. The leaders of the community in which the mall will be located objected bitterly, citing the loss in potential tax which the AQMD was imposing upon them. The incident illustrates an issue which is not often expressed in the current jobs-housing debate in Los Angeles: the scale of retail and workplaces. A common criticism of residential communities is that the physical separation of homes, shops, and workplaces literally forces residents to use cars in order to lead a functional life. A common reply from community leaders is that they want employment and retail in their community, because it brings tax revenue. However, retail shopping in America has become highly centralized, planned in much the same was as large industrial installations. Immense parking areas, signage, and proximity to freeways are all intended to make shopping centers equally accessible to residents from a large geographic area. Both retail and industry in America are likely to be designed in this pattern, and even an interspersal of such installations in all communities so that jobs and housing are brought into balance on a regional scale may not reduce the number of trips made.

A change in the pattern of trip generation

At present Americn regulators are intent upon reducing the use of automobiles in Los Angeles. The easier component of this problem to regulate companies which produce automobiles, and to reduce the number of journeys to work by regulating employers who generate commute trips. The more difficult component of this problem is to reduce the length of journeys to work, or the elimination of any commutes by car. Theoretically, if workplaces and residences are integrated at the scale of individual buildings and city blocks, we will have created an urban environment in which it is at least possible for all commutes to be made by foot or bicycle.
This is, however, based on an obsolete assumption that the jobs-housing balance can be conceived of as teh need to shorten the distance between homes and workplaces, or homes, workplaces, and transportation. One home, one workplace. Employment patterns in America have changed radically in the last fifteen years, though, and now both partners in a household usually work at outside, paid employment. Each is also likely to work more than one job or to freelance, as employers try to avoid paying full-time work benefits. The spatial relationship between jobs and workplaces have become far more complex.
As a result pollution regulators must not only overcome the resistance of local authorities in their effort to transform urban land use patterns, they will also unlimately have to push for changes in labor practices and regulations, to reduce the number of jobs that people are forced to hold. Far from the straightforward problem of the shortest distance between three points (the third being shopping), today the problem of reducing the number and length of trips has become more like finding the line of best fit in a multiple-regression analysis, in which regulators have only partial or indirect control over some of the variables to improve the fit, and no control over others.

Effects of regulation on the location of industry.

In the United States, heavy industry companies are moving certain components of their operations out of Los Angeles. Full-scale relocation is costly because of personnel and local contacts; however, if a company has staff and property somewhere outside of the basin, it is easiest to move the most polluting segment of a production process to places that have looser regulation.
Shell, for instance, has stopped refining oil in the basin altogether. This is a significant move since Long Beach is one of the major shipping ports on the entire west coast, and Los Angeles is one of the largest gasoline markets in the United States. Shell will rely on shipping and refining in the Bay Area and the Pacific Northwest, and bring fuel to Los Angeles by truck. Yet again, a step taken to accommodate air pollution regulation is simply a shift in regulatory regimes: in this case from AQMD's (stationary source) to ARB's (mobile source). At the moment, ARB's emissions regulations for trucks are somewhat lenient, and the overall reduction in emissions was probably lessened by the switch in practice. Hughes Aircraft has moved its helicopter assembly line to Arizona, outside of California's regulatory realm altogether.
The impact of air pollution policies upon industries in the Valley of Mexico is even more pronounced. Salinas and Solis have unequivocally demanded that entire industrial sectors, such as foundries and smelters, leave the Valley. When they requested pollution-reduction plans from each major industry in the city in 1989, some companies (such as Pemex) did not bother to respond. Solis simply closed the industries down, and only let certain industries resume operation once they submitted satisfactory plans. This surprise move eliminated any question as to whether certain dirty industries would be allowed to continue polluting under some form of grandfather clause. Again, the eighteenth-of-March refinery was the biggest, and one of the oldest single industries in the city, and neither its symbolic significance nor the political power of its parent company were able to shield the plant from closure. Pemex must now expand its refining capacities somewhere outside of the Valley of Mexico.

Seasonal Use of Mexico City

Until government policies begin to alleviate pollition in the capitol, those who can do something about it will. Wealthier residents of Mexico City may soon be relocating outside of the city on a seasonal basis as in mideval Italy, where the upper class would move out of cities during the unhealthy summer months. In Mexico City, wintertime is the unhealthy season. Thermal inversions become most severe, and pollution is concentrated in the lowest air layer, at ground level. To protect the health of children, the National Union of Parents has called for school systems to reverse their seasonal schedule and have the long break during the winter months. At present, business leaders already provide air conditioning systems for the schools which their children attend. Some families only remain in the capitol for the sake of their childrens' education, since the best schools are located in the city. Given the opportunity, though, many families would leave the city.(27)
The trend in Los Angeles, however, is more of a change in the nature of economic activity toward a headquarters and service-sector The emergent social-spatial model which Castells proposes pertains more fully to Los Angeles than to any other American metropolis: on the one hand, it is a physical locus of one or several nodes in a space of flows shared by the élite informational brokers ; on the other hand, an immense, disconnected, economically irrelevant underclass. The information-based economic sector can continue to thrive in Los Angeles, unhindered by current air pollution regulations or any stricter regulations likely to be enacted in the future. As an example, several corporations now share executive satellite offices, located in or near communities where executives live in the Los Angeles area. They can do so because many of the tasks which executives now perform require very little material support: a chair, a desk, a personal computer, and a modem.
Aside from infomation and the clerical work that supports it, the only two sectors of the economy in Los Angeles that seem to be unaffected by air pollution restrictions are the garment inductry and import-export distribution throught he ports of Los Angeles and Long Beach. At the moment it is difficult to predict, but the garment industry may soon move to Mexico as a consequence of the NAFTA. Distribution, meanwhile, will eventually be restricted by regulations on pollution generated by ships, trucks, and freight trains. Two other ports: Oakland and San Diego, will also face the same restrictions, but Vancouver, Seattle, Portland, and soon a number of Mexican ports could take up the share.(28)

Conclusion

In conclusion, air pollution policies are having a profound effect upon the urban forms of both Mexico City and Los Angeles. Los Angeles has a longer history of industrialized air pollution, and policies to mitigate the pollution. However, policies which are having a significant effect upon urban spatial patterns only began to be implemented in the mid nineteen-eighties in both cities.
Structurally, a state capitalist system would seem to be ideally suited for implementing command-and-control style regulation. In Mexico, however, the political and administrative centralization of the government hindered the implementation of policy, because no branch of the government can act independently to implement policies that threaten or conflict with the highest priorities of both the President and the PRI. The political system remains fundamentally unchanged: what is different, at the moment, is that environmentalism is one of this president's highest priority. Enforcement therefore tends to be very visible and symbolic, but only as effective as is possible without disrupting his economic reforms.
Ironically, Salinas engaged in a vigorous program of privatization and decentralization which will weaken the government's ability to directly intervene in pollution-controlling activities through its direct control of industries; yet Salinas has established such a high level of credibility and authority that he can push through far more substantial air pollution policies than his predecessors.
Just as the implementation of air pollution policies in Mexico City began with Salinas, it is possible that they will end with the same leader. To reduce air pollution in Mexico City, as in Los Angeles, will require substantial changes in urban form and the personal lifestyle of the residents. Both of these changes will be difficult and costly, and neither government may succeed. In Mexico City, though, the stakes are higher. If the government does not substantially increase the extent of public services, the health of the public, rich and poor, will remain in jeopardy. With the resurgence of cholera and tuberculosis in other New World cities, the need for the provision of sanitation has become urgent. A severe epidemic or clear indication of the degradation of public health in the capitol could lead to the defeat of the PRI in the upcoming elections. No matter which party is in power in the future, though, the public demand for government action will persist as long as the pollution remains severe; and Salinas' commitment to environmental programs is setting a precedent against which the performance of any future administrations will be gauged.
In the United States, the high degree of authoritative autonomy of each of the branches of government enable each agency to pursue the implementation of policies even if elected officials or special interest groups protest or disagree with the importance of the objectives. In Los Angeles, the very means by which air pollution policies are conceived of and implemented is a case study of institutional decentralization. Furthermore, business and environmentalist advocates are highly organized, and able to put tremendous pressure on the regulatory agencies from both sides; hence, the regulatory agencies operate in a condition of sustained political tension. Although slow and limited in its powers when compared to the dramatic steps taken by the Mexican government, the regulatory structure in Los Angeles has proved to be durable even when it does conflict with the interests of elected officials at both the local and national levels.
The effect of air pollution policies upon spatial patterns, especially factors of industrial location and intraurban movement are contributing to the transformation of Los Angeles into an informational city. Perhaps some economic growth will come from the effort at accommodating air pollution itself: Los Angeles is now the world leader in many forms of environmental technology. Engineers from Southern California Edison and regulators from the AQMD have been called upon to consult on projects and policies around the world, including Mexico City. Yet even this expertise is part of the information sector, though, and is not likely to employ many people. As for the 'surplus labor force' of millions who are at best peripheral and at worst irrelevant in the information-based economy, their fate is unclear, and fortunately beyond the scope of this paper.

Bibliography, organized by outline:

II. The advent of Air Pollution Policies

Krupnick, Alan J.; Portney, Paul R. "Controlling urban air pollution: a benefit-cost assessment." Science v252, n5005 (April 26, 1991):522-529.
"ARCO outlines alternative to emissions trading." Oil and Gas Journal v90, n28 (July 13, 1992):21.
Amidei, Lester A., Jr. "California a dangerous pattern for action on emissions reduction. Oil and Gas Journal v90, n11 (March 16, 1992):24-27.

III. The Regulatory Structure over Los Angeles

Mann, Eric. "L.A.'s smogbusters." Nation v251, n8 (Sept 17, 1990):257 (5 pages).
Stammer, Larry B. "Air pollution policy shaped by a select few." (Southern California) (Target 2010: The Quest for Clean Air in Southern California, part 3) Los Angeles Times v110 (Tue, April 30, 1991):A3.
Parrish, Michael. "The price of air cleanup: putting a value on health. (Southern California) (Target 2010: the quest for clean air in Southern California, part 2) Los Angeles Times v110 (Mon, April 29, 1991):A1.
Stammer, Larry B. "Smog war faces hazy prospects." (clean air goals by the South Coast Air Quality Management District) (includes information on the background of AQMD) (Target 2010, part 1) Los Angeles Times v110 (Sun, April 28, 1991):A1.
Weisman, Alan. L.A. fights for breath. New York Times Magazine v138 (Sun, July 30, 1989):14.
Nichols, Mary D. "Bush clears air on pollution, but for California it's mainly rhetoric." Los Angeles Times v108, secV (Sun, June 18, 1989):3.
La Ganga, Maria L. "AQMD votes for controls on 'fugitive dust'." (South Coast Air Quality Management District ruling on particulate pollution, linked to 1,600 deaths each year in Southern California) Los Angeles Times v111 (Sat, Nov 7, 1992):B1.
Stammer, Larry B. "AQMD logs fewer smog violations. (South Coast Air Quality Management District, Natural Resources Defense Council report) Los Angeles Times v111 (Fri, Sept 11, 1992):A3.
Stammer, Larry B. "AQMD logs fewer smog violations." (South Coast Air Quality Management
District, Natural Resources Defense Council report) Los Angeles Times v111 (Fri, Sept 11, 1992):A3.
Dolan, Maura. "Smog in much of basin down 50%, study says." (California Air Resources
Board report on Southern California) Los Angeles Times v111 (Tue, July 21, 1992):A1.
Meyer, Josh. "Breath easy; locally, the air is getting cleaner; most manufacturers have cut significantly the amount of contaminants released into the atmosphere, and they plan to continue the effort." Los Angeles Times v110 (Sun, Dec 1, 1991):J1.
Stammer, Larry B. "Air pollution dips 10% in smoggiest U.S. cities." (but Southern California still has dirtiest air) Los Angeles Times v110 (Thu, Nov 21, 1991):A3.
"The economics of clean air." (South Coast Air Quality Management District plans to streamline operating permit processes without falling behind on its clean air goals) Los Angeles Times v110 (Sun, Nov 10, 1991):M4.
Pasternak, Judy. "Smog checks to get in gear with Air Act." (Clean Air Act requires changes in California) Los Angeles Times v110 (Thu, Feb 28, 1991):A3.
Pasternak, Judy. "40 new rules proposed to clean Southland air." Los Angeles Times v110 (Fri, Feb 1, 1991):A3.
Ross, Michael. "Negotiators reach accord on acid rain." (Congress refines Clean Air Act) Los Angeles Times v109 (Mon, Oct 22, 1990):A1.
Lev, Michael. "Give me your tired, your rusty...." (Unocal's helps clean up Southern California's air by purchasing cars and trucks manufactured before 1971) New York Times v140 (Sat, Oct 6, 1990):17.
Stammer, Larry B. "State hurt by off-road engines deal in clean air bill, Wilson says." (Senator Pete Wilson warns that House of Representatives' clean air compromise will result in smoggier air) Los Angeles Times v108, secI (Sun, Oct 8, 1989):26.
"Taking a stand against smog." (California Air Resources Board urged to approve Southern California's air quality management plan) Los Angeles Times v108, secII
Dolan, Maura. "Utilities win extension on smog deadline." (set by South Coast Air Quality Management District) Los Angeles Times v108, secI (Sat, August 5, 1989):1
Weisman, Alan. "L.A. fights for breath." New York Times Magazine v138 (Sun, July 30, 1989):14.

ARB, LAAPCD, and the Clean Air Act

"Pollution district sued over Vernon incinerator." Los Angeles Times v108 (Mon, Nov 27, 1989):D2.
Barker, Mayerene. "AQMD cites L.A. for Lopez canyon emissions." (Lopez Canyon Landfill exceeds pollution limits says South Coast Air Quality Management District) Los Angeles Times v109 (Thu, Sept 13, 1990):B1.
Reinhold, Robert. "Clean air pact to backfire in California, officials say." (federal automobile pollution control law compromise criticized by Senator Pete Wilson, Jananne Sharpless, head of state Air Resources Board)... New York Times v139 (Fri, Oct 13, 1989):A11.
Wald, Matthew L. "Recharting war on smog: in shift from 70's, pollution controls begin in states, then are adopted by Washington." New York Times v139 (Tue, Oct 10, 1989):A1.
C. SCAQMD: process of policy development.
Lents, James M.; Brown, Craig M. "Reducing air pollution." (letter to the editor) Los Angeles Times v110 (Thu, May 16, 1991):B6.
Pasternak, Judy. "Complaints by industry spur AQMD shift." Los Angeles Times v110 (Thu, Nov 7, 1991):A3.
"Repair shops fear the costs of proposed federal smog test." (Environmental Protection Agency regulation) New York Times v141, sec1 (Sun, Oct 20, 1991):10.
Pasternak, Judy. "Clash of rules for air, water hits business." Los Angeles Times v110 (Mon, July 1, 1991):A3.
Pasternak, Judy. "Arco to drop its pollution permit bid." (Arco Products Co. withdraws operations increase request to South Coast Air Quality Management District) Los Angeles Times v110 (Fri, May 24, 1991):B1.
Pasternak, Judy. "ARCO seeks pollution trade-off." (ARCO Products Co., introduces low-emission gasoline and want to expand refinery facilities) Los Angeles Times v110 (Wed, May 22, 1991):A3.
Johnson, Kevin. "Disney's expansion plans are not a free ride; issues of traffic congestion, air pollution and paying for the massive public improvements must be dealt with. Company officials cite the new jobs and..." Los Angeles Times v110 (Sun, May 12, 1991):A3.
"Top automakers to join with EPA in research." (Environmental Protection Agency, California Air Resources Board and an automobile manufacturer's research consortium to try to measure air pollutants) Wall Street Journal (Thu, Oct 15, 1992):A12.

 ARB intervention

"Cars of the 21st century." (other states following California's lead in tough emission standards) U.S. News & World Report v111, n20 (Nov 11, 1991):23.
Henry, Jim; Breese, Kristine Stiven. "Calif. air rules may cover Northeast; would affect 36% of vehicles in U.S." Automotive News, n5418 (Nov 4, 1991):1.

The 1987 Air Quality Management Plan

Mydans, Seth. "U.S. proposes steps to curb pollution if plans by Los Angeles fall short." New York Times v139 (Wed, August 1, 1990):A7.
Hager, Philip. "State justices uphold local air regulations" (controls of toxic non-vehicular emissions need not wait for state action, court rules). (California Supreme Court) Los Angeles Times v108, secI (Fri, August 18, 1989):1.
Pasternak, Judy. "Court orders tighter curbs on L.A. smog." (Environmental Protection Agency ordered by federal appellate court to write clean air plan for Los Angeles region) Los Angeles Times v111 (Thu, July 2, 1992):A1.
"EPA ordered to proceed with plan on Los Angeles." (federal court orders Environmental Protection Agency to proceed with pollution control plan in Los Angeles, California) Wall Street Journal (Fri, July 3, 1992):B3.
"Agency urges changes in air-quality rules in Southern California." Wall Street Journal (Mon, August 10, 1992):A5A.
Baron, David S. "Urban air quality litigation under the Clean Air Act: past, present, and future." Environmental Law Reporter, 20:10216-21 June 1990.
Roumasset, James A. and Kirk R. Smith. "Exposure Trading: an approach to more efficient air pollution control." Journal of Environmental Econ and Management. 18:276-91 May 1990.
Morris, David. "A dirty city fights to come clean." (Los Angeles, CA air quality plan) Utne Reader, n48 (Nov-Dec, 1991):34.
"A drastic plan to banish smog; Los Angeles seeks to clear its smudged skies by the year 2009." Time v133, n13 (March 27, 1989):65.
Gawronski, Francis J. "S. California proposal calls for alternative fuels." Automotive News, n5215 (Jan 11, 1988):6.
Cowley, Geoffrey. "Fill'er up with methyl: turning the fight against smog into a joy ride." Newsweek v113, n18 (May 1, 1989):67.

IV. Mexican Policy.

Griffin, Rodman D. "Qualified democracy." (a dictatorial government camouflaged to appear as a democratic government; Mexico's Emergence) CQ Researcher v1, n11 (July 19, 1991):502.
Griffin, Rodman D. Ongoing problems. (social, economic, and environmental problems; Mexico's Emergence)(includes related article) CQ Researcher v1, n11 (July 19, 1991):506.
Robinson, Linda. Mexico's new revolution: President Salinas uses free enterprise to drive his country into the modern age. (Carlos Salinas de Gortari) U.S. News & World Report v111, n2 (July 8, 1991):38.
Simon, Joel. "Salinas repeals the revolution; Mexico's free traders." Nation v252, n24 (June 24, 1991):842.
Russell, James W. "Free trade and concentration of capital in Mexico." Monthly Review v44, n2 (June, 1992):23.
Scott, David Clark. "Mexico shake-up rattles environmentalists." (ministries to be reorganized) Christian Science Monitor v84, n111 (Mon, May 4, 1992):6.

Industries

Scott, David Clark. "New smog plan for Mexico." (President Carlos Salinas de Gortari's Ecology Pact delivers ultimatum to Mexico City's industries) Christian Science Monitor v84, n85 (Fri, March 27, 1992):7.
Holman, Richard L. "Mexico moves to cut pollution." Wall Street Journal (Wed, March 25, 1992):A9
Darling, Juanita. "Cabinet shifts in Mexico stir politicians." (cabinet consolidation by President ) Los Angeles Times v111 (Fri, Jan 10, 1992):A5.
Darling, Juanita. "Mexico City's trucks, buses must convert to clean fuel." Los Angeles Times v111 (Wed, Feb 12, 1992):A1.
Darling, Juanita; Stammer, Larry B.; Pasternak, Judy. "Can Mexico clean up its act?" (environmental impact of U.S-Mexico commercial treaty) (The Free-Trade Dilemma, Part 1) Los Angeles Times v110 (Sun, Nov 17, 1991):A1.
Scott, David Clark. "Mexico City tackles herculean pollution, population pressures." (includes City's vital statistics) (Mega-Cities; Part 1) Christian Science Monitor v83, n230 (Wed, Oct 23, 1991):10.
Miller, Marjorie; Darling, Juanita. "Mexico is radically shifting its economy and ideology. The nationalist, state-run model is out. The free market is in. But there are costs." Los Angeles Times v110 (Tue, Oct 22, 1991):H1.
Moffett, Matt. "Monterrey sides with Mexican president; industrial city benefits from Salinas's economic reforms." Wall Street Journal (Mon, May 22, 1989):A12
Moffett, Matt. "Urban quandary: Mexico City's subsidies present stiff challenge to President Salinas; high cost hurts bid to revive economy, but a cut risks unrest in angry populace; a spray-painted thank-you." Wall Street Journal (Tue, Jan 10, 1989):A1.

Advent of Salinas.

Larmer, Brook. "Glasnost in Mexico: old guard takes perilous steps." Christian Science Monitor v80, n109 (Mon, May 2, 1988):1.
Branigin, William. "Top Mexican candidate pledges risky reforms: Salinas offers opening to other parties." Washington Post v111 (Thu, May 12, 1988):A23.
Harrison, Lawrence E. "Leading Mexico out of dictatorship." Washington Post v111 (Wed, June 22, 1988):A23.
Schneider, William. "Salinas to open Mexico for markets, rival politics." Los Angeles Times v107, secV (Sun, June 26, 1988):1
Miller, Marjorie; Williams, Dan. "Two aides of presidential candidate in Mexico slain." (Cuauhtemoc Cardenas; Francisco Xavier Ovando; Roman Gil Heraldez) Los Angeles Times v107, secI (Tue, July 5, 1988):1
Moffett, Matt. "Mexican politics seems forever transformed by close 3-way vote: ruling party's Salinas may be new leader, but validity of vote will cast shadow; pending problems for U.S." Wall Street Journal (Mon, July 11, 1988):1
Cornelius, Wayne A. "Mexico's one-party system is dead: Salinas must be his own man, igniting reform from ashes." Los Angeles Times v107, secII (Tue, July 12, 1988):7
Rubio, Luis. "No room for compromising with Cardenas' big-government policies." (Cuauhtemoc Cardenas', Carlos Salinas de Gortari's economic programs) Los Angeles Times v107, secII (Tue, July 12, 1988):7
Williams, Dan. "Salinas widens his lead in Mexico tally; voters take to streets in protest; Clouthier concedes defeat." (Manuel J. Clouthier) Los Angeles Times v107, secI (Tue, July 12, 1988):6
Kandell, Jonathan; Moffett, Matt; Solis, Dianna. "Mexico's apparent new president faces a series of challenges to his legitimacy." Wall Street Journal (Wed, July 13, 1988):15
Castenada, Jorge G. "Mexico's hand is to the fire; Salinas must accommodate a surprising surge from the left." Los Angeles Times v107, secII (Wed, July 13, 1988):7
Orme, William A., Jr. "Salinas declared winner in Mexico; official results give ruling party candidate 50 percent of vote." Washington Post v111 (Thu, July 14, 1988):A21
Williams, Dan. "Salinas received just 50.3% of vote, final tally shows." Los Angeles Times v107, secI (Thu, July 14, 1988):1
Branigan, William. "Mexican launches election protest campaign; more than 200,000 attend rally; fraud alleged in July 6 vote." (Cuauhtemoc Cardenas) Washington Post v111 (Sun, July 17, 1988):A1
Riding, Alan. "Salinas is facing the economic facts; the voters' point is taken." New York Times v137, sec4 (Sun, July 17, 1988):E2
Miller, Marjorie. "Mexicans stage mass rally against PRI." Los Angeles Times v107, secI (Sun, July 17, 1988):4
Moffett, Matt. "Embattled leader; new Mexican president is in political jeopardy before taking office; winner in a disputed tally, Carlos Salinas must search for a national following; Harvard and a farmer's hut." Wall Street Journal (Wed, Aug 31, 1988):1
Rohter, Larry. "In Mexican politics, a lame duck isn't so lame; transitions are often rough, even within the ruling party." New York Times v138, sec1 (Sun, Oct 23, 1988):6
Miller, Marjorie. "Corruption scandal challenges Mexico President-elect." Los Angeles Times v107, secI (Sun, Oct 30, 1988):6
Miller, Marjorie. "For Mexico's new leader, power will have limits." Los Angeles Times v107, secI (Thu, Dec 1, 1988):1
1. The fight with Pemex
Cohen, Roger. "Latin Boss: Mexican labor leader wields power to test President-Elect Salinas; La Quina, head of oil union, runs big business empire that drains the economy; what Pemex means to nation." Wall Street Journal 212:1+ September 27, 1988.
Farquharson, Mary. "Pollution plan targets community." Business Mexico 6:50 December 1989.
Reinhold, Robert. "Mexico says it won't harbor U.S. companies fouling air." (environmental standards for companies in Mexico to be tightened. New York Times v140 (Thu, April 18, 1991):A1

V. General considerations of Air Pollution Policies upon Urban form.

A. Automobile use-patterns

Renner, Michael G. "Car sick: where emission standards are strict--as in the U.S.--overuse of automobiles is still leading to the poisoning of air, water, and people." World Watch 1:36-43 Nov/Dec 1988.
Nowell, Gregory P. "the Air Quality debate in California: should gasoline be banned?" Energy Policy 18:652-60 S 1990.
"Federal and state officials last week signed a multiyear research agreement with U.S. automakers to help develop technology to monitor and enforce future emissions standards." Oil and Gas Journal v90, n42 (Oct 19, 1992):4.
"Drive+: promoting cleaner and more fuel efficient motor vehicles through a self-financing system of state sales tax incentives." Journal of Policy Analysis & Management v9, n3 (Summer, 1990):409
Elmer-DeWitt, Philip. "L.A.'s high-watt highway: electric cars get a boost in the capital of smog." Time v135, n18 (April 30, 1990):96.
"California mulling credits if firms scrap old cars." (pollution credits for companies that help prevent air pollution) Wall Street Journal (Wed, July 22, 1992):B4.
Rose, Frederick. "Unocal is seeking tired, older autos of Los Angeles area; voluntary, $5 million program to scrap clunkers aims at cutting air pollution." Wall Street Journal (Fri, April 27, 1990):A7B

B. Land Use.

"Will Land-use planning solve our environmental problems?" Environmental Forum 6:18-26 July/August 1989 [re: SCAQMD plan]
Rohter, Larry. "Now, the urban sprawl wonder diet." New York Times v138 (Sat, Dec 24, 1988):4.
"A small but welcome parcel." (United Parcel Services to convert trucks to natural gas) Los Angeles Times v109 (Thu, July 12, 1990):B6.
Clifford, Frank. "AQMD officials back off from commuter fee plan." Los Angeles Times v109 (Sat, July 7, 1990):A1.
Lee, Patrick. "AQMD says utility merger would increase L.A. smog." Los Angeles Times v109 (Sat, June 2, 1990):A32.
Wells, Ken. "California mulls tying auto tax to emissions." Wall Street Journal (Mon, May 7, 1990):B1.
C. Industrial Location.
Weber, Jonathan. "Orange County is home base to smogbusters." (reducing air pollution at industrial plants) Los Angeles Times v108 (Sun, Oct 22, 1989):D1
Lents, James M. "Businesses running away from smog will not cleanse L.A.'s air. Los Angeles Times v109 (Sun, Sept 16, 1990):M5
Weber, Jonathan. "Orange County is home base to smogbusters." (reducing air pollution at industrial plants) Los Angeles Times v108 (Sun, Oct 22, 1989):D1
E. Social Impacts
Novick, Michael. "The WATCHDOG." (grass-roots, multi racial, working class Los Angeles, CA group focusing on air pollution) EPA Journal v18, n1 (March-April, 1992):51 (2 pages).
Bernard, Mitchell S.; Green, Carolyn L. "Toxic air is inner city's silent menace; urban environmentalism means seeing pollution as a form of economic injustice." (Column) Los Angeles Times v111 (Mon, July 20, 1992):B5
Candaele, Kelly. "Why should only workers have to pay for less polluted air?" Los Angeles Times v111 (Sun, Feb 23, 1992):M6.
Pincetl, Stephanie. "Must a clean environment come at the cost of jobs?" (California Air Resources Board plans to regulate industrial pollution) Los Angeles Times v108, secII (Thu, June 29, 1989):7.

END NOTES

(1) Mumme, Stephen P. "Clearing the Air on Environmental Reform in Mexico." Environment volume 33 number 10; December 1991, p. 9
(2) Duane, Timothy. "Environmental planning and Policy in a Post-Rio World." Berkeley Planning Journal, Spring, 1993, p. 32.
(3) Duane, p. 39.
(4) Duane, p. 42.
(5) Duane, p. 45.
(6) "Facts About Air Pollution and Health," California Air Resources Board pamphlet, p. 4.
(7) Duane, p. 48.
(8) Wald, Matthew L. "Recharting war on smog: in shift from 70's, pollution controls begin in states, then are adopted by Washington." New York Times v139 (Tue, Oct 10, 1989) p. A1.
(9) EPA Journal, May/June 1992, p. 9.
(10) Laver, Ross. Maclean's, March 26, 1990, p. 41.
(11) Scott, David Clark. "Streamlining Mexico's bloated oil monopoly." Christian Science Monitor vol.84, no.145 (Mon, June 22, 1992), p. 7
(12) Laver, p. 42
(13) Miller, Marjorie. "Mexico City's smoogy air obscuring mayor's future." Los Angeles Times vol. 111, April 11, 1992, p. A3.
(14) Uhlig, Mark. "Refinery Closing Outrages Mexican Workers." New York Times vol.140, March 27, 1991, p. A11.
(15) Darling, Juanita. "Plan to break up Mexico's oil giant wins final OK." Los Angeles Times v111 (Tue, June 16, 1992):D3, col 1, 14 col in. UCB NewsMicro NEWSFILM
(16) Edward Camarena, personal communication.
(17) Scott, David Clark. "Streamlining Mexico's bloated oil monopoly." (state owned Pemex oil company under pressure to end monopoly) Christian Science Monitor v84, n145 (Mon, June 22, 1992):7
(18) Downer, Stephen. "Mexico City targets autos in air plan." Automotive News, n5363 (Oct 22, 1990):4.
(19) Conger, Lucy. "Foul Facts in a Polluted City." Maclean's, p. 44.
(20) Mumme, p. 11.
(21) Edward Camarena, personal communication.
(22) Thompson, Mark. "Fighting for cleaner air: the use of automobiles must be regulated if Los Angeles is to win its war against smog." Atlantic v262, n3 (Sept, 1988):20.
(23) "California air board adopts a broad plan to counter pollution." New York Times v138 (Wed, August 16, 1989): A12(N).
(24) Stammer, Larry B. "Clean-air plan vote delayed for 60 days." Los Angeles Times v108, (Sat, June 24, 1989): secI, 1.
(25) "For regional government." (editorial) Los Angeles Times v108, secII (Sat, Sept 23, 1989):8.
(26) Golden, Tim. "Mexican President Outlines Program For Changes." New York Times vol. 120, November 2, 1991,
and Uhlig, Mark. "Gasping, Mexicans Act to Clear the Capital's Air." New York Times vol. 120, January 23, 1991, p. A12.
(27) Clifford, Frank. "From out of the smog emerges a 4-day week." (possible means to cutting down on automobile emission pollution) Los Angeles Times v108, secI (Sat, June 17, 1989):1.
(28) Zelenko, Laura. "Traffic and pollution create satellite offices." American Demographics v14, n6 (June, 1992):26.


OUTLINE-BIBLIOGRAPHY
Harrison, Lawrence E.  "Leading Mexico out of dictatorship."    Washington Post v111 (Wed, June 22, 1988):A23.
Schneider, William. "Salinas to open Mexico for markets, rival politics." Los Angeles Times v107, secV (Sun, June 26, 1988):1
Miller, Marjorie; Williams, Dan. "Two aides of presidential candidate in Mexico slain." (Cuauhtemoc Cardenas; Francisco Xavier