UH GEOL 1350 - Air Pollution (2 pages)

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Air Pollution



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Air Pollution

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air pollution


Lecture number:
20
Pages:
2
Type:
Lecture Note
School:
University of Houston
Course:
Geol 1350 - Introduction to Meteorology
Edition:
1

Unformatted text preview:

Geology 1350 Lecture 20 Outline of Last Lecture I Climate change Outline of Current Lecture I Air Pollution Current Lecture Pollution began in the industrial revolution Air pollution types sources and trends including tropospheric and stratospheric Meteorologic and topographic effect on air pollution s well as pollution in the urban environments Types and sources primary and secondary primary carbon monoxide what you put in gas enter the atmosphere right away while secondary pollutants formed by chemical reaction Pollutant sources are both natural such as volcanoes and forest fires and human caused such as cars and industry Principal air pollutants carbon mono sulfur oxides nitrogen oxides volatile organic compounds and particulate matter are the most prevalent primary pollutants and transportation and power generation are the primary sources for theses pollutants Particulate matter pollution particulate are classified as hiving diameters 10 and 2 5 pm10 pollutants settle out the atmosphere relatively quickly compared with the lingering pm 2 5 both can adversely affect human health and reduce visibility Visible and invisible pollutants suspended by hygroscopic particles may scatter Typical diurnal variations peak in the morning and down in the afternoon Ozone is formed in the troposphere when NO is oxidized to no2 by any species but not ozone These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Trends in urban ozone yearly ozone trends are influenced by hot sunny weather and light surface winds but many cities have demonstrated an overall decline in harmful ozone levels during the 1980s except Houston



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