Chapter 17: Environmental Hazards and Human Health
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Section 1: What major health hazards do we face?
Concept 17-1: We face health hazards from biological, chemical, physical, and cultural factors, and from the lifestyle choices we make. Section 2: What Types of Biological Hazards Do We Face?
Concept 17-2: The most serious biological hazards we face are infectious diseases such as flu, AIDS, tuberculosis, diarrheal diseases, and malaria Section 3: What Types of Chemical Hazards Do We Face?
Concept 17-3: There is growing concern about chemicals in the environment that can cause cancers and birth defects, and disrupt the human immune, nervous, and endocrine systems. |
Section 4: How Can We Evaluate Chemical Hazards?
Concept 17-4A: Scientists use live laboratory animals, cause reports of poisonings, and epidemiological studies to estimate the toxicity of chemicals, but these methods have limitations. Concept 17-4B: Many health scientists call for much greater emphasis on pollution prevention to reduce our exposure to potentially harmful chemicals. Section 5: How Do We Perceive Risks and How Can We Avoid the Worst of Them?
Concept 17-5: We can reduce the major risks we face by becoming informed, thinking critically about risks, and making careful choices. |
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