Gay, Kathlyn.
Air pollution / by Kathlyn Gay. - New York : Franklin Watts, 1991. - 144 p. : ill. - An Impact book .
Includes bibliographical references and index.
Examines the growing problem of air pollution, its effect on the ozone and stratosphere and what we can do to improve air quality.
7-12.
0531130029
91017780
Air pollution.
Pollution.
363.73
Air pollution / by Kathlyn Gay. - New York : Franklin Watts, 1991. - 144 p. : ill. - An Impact book .
Includes bibliographical references and index.
Examines the growing problem of air pollution, its effect on the ozone and stratosphere and what we can do to improve air quality.
7-12.
0531130029
91017780
Air pollution.
Pollution.
363.73