Chapter Objectives

After reading this chapter, you should be able to:

Explain why air can accept and disperse significant amounts of pollutants.

List the major sources and effects of the five primary pollutants.

Describe how photochemical smog is formed and how it affects humans.

Explain how PCV valves, APC valves, catalytic converters, scrubbers, precipitators, filters, and changes in fuel types reduce air pollution.

Explain how acid rain is formed.

Understand that humans can alter the atmosphere in such a way that the climate may change.

Describe the link between chlorofluorocarbon use and ozone depletion.

Recognize that enclosed areas can trap air pollutants that are normally diluted in the atmosphere.

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