Read e-book online Air Quality in the Mexico Megacity: An Integrated Assessment PDF

By Luisa T. Molina, Mario J. Molina (auth.), Luisa T. Molina, Mario J. Molina (eds.)

ISBN-10: 1402005075

ISBN-13: 9781402005077

ISBN-10: 9401004544

ISBN-13: 9789401004541

In this ebook, specialists in atmospheric sciences, human future health, economics, social and political sciences give a contribution to an built-in evaluate of the advanced parts had to constitution air caliber coverage within the twenty first century. The research is built via a case research of the Mexico urban Metropolitan sector - one of many world's greatest megacities during which pollution grew unchecked for many years. The overseas examine workforce is led via Luisa T. and Mario J. Molina, Nobel Laureate in Chemistry. advancements in Mexico City's air caliber within the final decade testifies to the ability of decided and enlightened coverage making, and throws into aid the harsh difficulties that stay to be solved.
The volume's first six chapters, together with the contributions of over 50 distinctive students from Mexico and the united states, define the elemental parts of data coverage makers needs to accommodate. The message is that purely stable technology and well-chosen applied sciences can direct how to corrective regulatory measures; yet with out powerful dedication from executive, no volume of technology or know-how can help.

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The net impact of concurrent changes might be difficult to assess. For example, increases in temperature accelerate the rates of production of troposphere ozone while increases in atmospheric vapor affect both production and the destruction of this species (NRC, 2001a). Ozone is a local air pollutant and also a greenhouse gas. Other pollutants, such as methane and carbon dioxide, do not have direct effects on human health and ecosystems. However, as greenhouse gases they can affect climate and, indirectly, ecosystems.

The chronic effects of sulfur dioxide exposure include immune system suppression and increased probability of bronchitis. Nitrogen Oxides. There are several oxides of nitrogen. The two most important ones in air pollution are nitric oxide (NO) and nitrogen dioxide (N02)' They are commonly referred as NO x ' Nitric oxide is a colorless and odorless gas, while nitrogen dioxide is a reddish-brown gas with a pungent smell. It is corrosive to materials and toxic to humans. Another oxide, nitrous oxide (N20) is also present in the atmosphere, but it is chemically very stable and does not affect human health.

For example, attempts to reduce the ozone precursors contained in smoke from garbage combustion also decreased particulates released into the atmosphere. Once air pollution regulation became a significant CLEANING TH E AIR: A COMPARATIVE STUDY 33 business issue and industries began to take the problem seriously, the shift in focus from uncontrolled emissions to emission control equipment began to reduce levels for nontargeted pollutants as well. When business decisions are made regarding operations, the effects of equipment choices on air quality can no longer be ignored.

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Air Quality in the Mexico Megacity: An Integrated Assessment by Luisa T. Molina, Mario J. Molina (auth.), Luisa T. Molina, Mario J. Molina (eds.)

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