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Environmental Health

Chapter FifteenPgs. 421 - 443Ms. Wheeler & Mr. Rath

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Environmental Healthpg. 422

• Environment The natural and human-made surroundings in which we spend our lives

• Environmental health The collective interactions of humans with the environment and the short-term and long-term health consequences of those interactions

• Today, there is a growing concern for the following:• Population growth• Pollution:

• Greenhouse effect and global warning• Thinning of the ozone layer

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World Population Growthpg. 423

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How Many People Can the World Hold?pgs. 423-424

• 2006 report from the United Nation’s Convention states the population’s demands for resources exceeds the earth’s capacity by 20%• Food

• Available land and water

• Energy

• Minimum acceptable standard of living

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Factors That Contribute to Population Growthpgs. 424-425

• High fertility rates

• Lack of family planning resources

• Lower death rates

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Air Quality and Pollutionpgs. 428-430

• Air Quality and Smog

• U.S. Environmental Protection Agency (EPA)

• Air Quality Index (AQI) varies from 0 to 500

• Carbon monoxide

• Sulfur dioxide

• Nitrogen dioxide

• Particulate matter

• Ground-level ozone

• The Greenhouse Effect and Global Warming

• Greenhouse gases

• Greenhouse effect

• Global warming

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Sources of Greenhouse Gasespgs. 426-427

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Temperature projections to the year 2100…pg. 427

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Air Quality and Pollution pgs. 428-430

• Thinning of the Ozone Layer• Invisible layer about 10-30 miles above the earth’s surface• Shields the planet from the sun’s ultraviolet rays• Chlorofluorocarbons

• Energy Use and Air Pollution• 85% of the energy we use comes from fossils fuels• Two Key strategies for controlling energy use

• Conservation

• Development of nonpolluting renewable sources of energy• E85 fuel• Ethanol• Hybrid and electric vehicles• Compact fluorescent light bulbs

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Water Quality and Pollutionpg. 430-435

• Water contamination and treatment• Fluoridation water treatment

• Water Shortages

• Sewage

• Protecting the Water Supply

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Solid Wastepg. 433-435

• What’s in Our Garbage?• 2008, American’s generated 250 million tons of trash

• Figure 15.3 Lists the Components of municipal solid waste before recycling

• Disposing of Solid Waste

• Biodegradability

• Recycling

• Discard Technology: eWaste

• Reducing Solid Waste

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Chemical Pollution and Hazardous Wastepg.436-438

• Asbestos

• Lead

• Pesticides

• Mercury

• Other Chemical Pollutants

• Preventing Chemical Pollution

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Radiation Pollutionpgs.438-439

• Nuclear Weapons and Nuclear Energy

• Medical Uses of Radiation

• Radiation in the Home and Workplace

• Avoiding Radiation

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Environmental Health

Chapter Fifteen