photochemical smog


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photochemical smog

[¦fōd·ō′kem·ə·kəl ′smäg]
(meteorology)
Chemical pollutants in the atmosphere resulting from chemical reactions involving hydrocarbons and nitrogen oxides in the presence of sunlight.
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Topics covered include steady- and non-steady-state modeling, chemical kinetics, stratospheric ozone, photochemical smog, the greenhouse effect, carbonate equilibria, the application of partition coefficients, pesticides, and toxic metals.
Figures 2 and 3 illustrate the photochemical smog chemistry within the two sides of the chamber during the experiment directly comparing photochemical reaction products formed with ISO or BD.
Those fine particles get into your lungs and they do the same damage'' as photochemical smog from industry and vehicle exhaust, he said.
Further research is likely to include the development of a photochemical smog model for the Klang Valley region, measurement of particle source chemical profiles for smoke and vehicle emissions, and the development of emission inventories for N[O.
The challenge is to break the nexus between global warming, ozone depletion and photochemical smog, and the number of cars we drive and increase in polluting industry.
The researchers estimate that by the year 2025, 30-75% of the world's cereal crops will be grown in areas with potentially harmful levels of ozone, an air pollutant produced in photochemical smog.
citizens live in urban areas that exceed the standard for ozone, the major irritant in photochemical smog.
Hythane[R] is a patented mixture of hydrogen and natural gas that provides a dramatic reduction in nitrous oxide emissions, a source of harmful photochemical smog.
The new edition is updated to reflect recent developments in the field, has a new chapter on metals, sections on radionuclides and acid drainage water, and more on photochemical smog and the Greenhouse Effect.
The effect of ozone associated with summertime photochemical smog and frequency of asthma visits to hospital emergency departments.
These volatile compounds add to photochemical smog -- a mixture of ozone, other oxidants and particles -- in the same way as emissions from human sources, such as cars and industrial process.

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