Unit 11 Study Guide - Air Pollution

Front

NO2 (nitrogen dioxide) - primary or secondary pollutant?

Back

Primary pollutant: A pollutant that is emitted directly from a source.

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Acid rain - primary or secondary pollutant?

Back

Secondary pollutant: A pollutant that forms in the atmosphere through chemical reactions.

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Lead - primary or secondary pollutant?

Back

Primary pollutant: A pollutant that is directly emitted from sources such as vehicles and industrial processes.

Front

Which law gives the EPA the power to regulate air pollution?

Back

Clean Air Act: A federal law designed to control air pollution on a national level.

Front

Volatile organic compounds (VOCs) are...

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Organic chemicals that form toxic fumes and can contribute to air pollution.

Front

What is the main source of nitrogen oxides (NOx) in the atmosphere?

Back

Combustion of fossil fuels in vehicles and power plants.

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What are particulate matter (PM)?

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Tiny particles of liquid or solid matter suspended in the air, which can harm human health.

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What is the greenhouse effect?

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The warming of Earth’s surface due to the trapping of heat by greenhouse gases.

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What are the health effects of air pollution?

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Respiratory diseases, cardiovascular problems, and increased mortality rates.

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What is smog?

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A type of air pollution that is a mixture of smoke and fog, often exacerbated by temperature inversions.