Chapter 18: Air Pollution
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Section 1: What Is the Nature of the Atmosphere?
Concept 18-1: The two innermost layers of the atmosphere are the troposphere, which supports life, and the stratosphere, which contains the protective ozone layer. Section 2: What Are the Major Outdoor Air Pollution Problems?
Concept 18-2: Pollutants mix in the air to for industrial smog, primarily as a result of burning coal, and to form photochemical smog, caused by emissions from motor vehicles, industrial facilities, and power plants. Section 3: What Is Acid Deposition and Why Is It a Problem?
Concept 18-3: Acid deposition is caused mainly by coal-burning power plants and motor vehicle emissions, and in some regions it threatens human health, aquatic life and ecosystems, forests, and human-built structures. Section 4: What Are the Major Indoor Air Pollution Problems?
Concept 18-4: The most threatening indoor air pollutants are smoke and soot from the burning of wood and coal in cooking fires (mostly in less-developed countries), cigarette smoke, and the chemicals used in building materials and cleaning products. |
Section 5: What Are the Health Effects of Air Pollution?
Concept 18-5: Air pollution can contribute to asthma, chronic bronchitis, emphysema, lung cancer, heart attack, and stroke. Section 6: How Should We Deal with Air Pollution?
Concept 18-6: Legal, economic, and technological tools can help us to clean up air pollution, but the best solution is to prevent it. Section 7: How Have We Depleted Ozone in the Stratosphere and What Can We Do About It?
Concept 18-7A: Our widespread use of certain chemicals has reduced ozone levels in the stratosphere and allowed more harmful ultraviolet radiation to reach the earth's surface. Concept 18-7B: To reverse ozone depletion, we must stop producing ozone-depleting chemicals and adhere to the international treaties that ban such chemicals. |
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