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13 Cards in this Set
- Front
- Back
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4 processes that affect air pollution levels
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Emissions, Chemistry, Transport and Deposition
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Pollutant Types
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Primary (emitted directly into atmosphere) and Secondary (produced from chemical reactions in the atmosphere by the primaries)
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Sulfur dioxide (SO2)
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Primary- forms at high temps and is associated with acid rain and aerosols
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Nitrogen oxides (NOx)
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Primary - Forms at high temps during combustion when nitrogen is present
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Carbon monoxide (CO)
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Primary - odorless, colorless gas that is formed by incomplete combustion of carbon, can cause harmful effects in humans.
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Volatile Organic Compounds (VOCs)
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Primary - hydrocarbons and other organic chemicals emitted from combustion and industrial activities
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Aerosols and Particulate Matter (PM)
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Small particles suspended in the atmosphere. Primary (dust and smoke) Secondary (smog.) EPA regulated.
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Temperature Inversions
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Layer of atmosphere in which temperature is increasing with height, warm air lying over cold air.
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Smog
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In urban air pollution, heavy concentrations of both primary and secondary pollutants, particulates and vapors (NOx, CO, and RH)
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Acid Rain
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deposition of particulates that react in the atmosphere to produce acidic chemicals. |
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Acid Shock
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Sudden runoff of large amounts of highly acid water and aluminum ions into lakes and streams
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Calcium carbonate
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soils containing this have a good buffering capacity for acid rain (Tums)
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Aluminum Ions
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toxic to most plants, from acid rain. Freely moves from soil to plant tissue.
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