Environmental Health Ch 17 When the sun rises, I go to work. When the sun goes down, I take my rest. I dig the well from which I drink, I farm the soil that yields my food. I share creation, Kings can do no more. -- Ancient Chinese Proverb, 2500 B.C.

2 Environment  The multitude of dynamic conditions that are external to the person

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

4 "Man did not weave the web of life - he is merely a strand in it. Whatever he does to the web, he does to himself." Chief Seattle (1854 treaty oration)1854 treaty oration

5 "In our every deliberation, we must consider the impact of our decisions on the next seven generations." From The Great Law of The Iroquois Confederacy

6 What are some classic environmental concerns?

7 Water Quality Air Quality Waste Disposal Population Greenhouse Effect and Global Warming Chemical Pollution Radiation Indoor Air Pollution

8 An Inconvenient Truth: Al Gore

9 Clean Water Water Contamination and Treatment. Fluoridation Water-treatment plants Water shortages Only 35% of the world’s population has an adequate water supply

10 Waste Disposal Sewage Septic system Heavy metal Polychlorinated biphenyls (PCBs) Solid waste Garbage Sanitary landfill

11 Waste Disposal What You Can Do to Reduce Garbage Products with least amount of packaging Products made of recycled paper or recyclable products Avoid using foam or paper cups Store food in glass jars and reusable plastic containers Recycle newspapers, glass, cans, paper, and any other recyclables Start a compost pile Stop junk mail

12 Population Growth World’s population currently estimated at 6.1 billion Increasing by 78 million per year To exceed 9 billion by 2050 How Many People Can the World Hold? Food Available land and water Energy Minimum acceptable standard of living

13 World Population Factors That Contribute to Population Growth High fertility rates Lack of family planning resources Lower death rates

14 p. 395 Text

15 An estimated ______% of the U.S. population live in communities that fail to meet 1 or more federal air quality standards.

16 Pollution Air pollution Key Terms: EPA- Environmental Protection Agency AQI- Air Quality Index Smog Thermal Inversion Acid Rain

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18 P. 423 Text Greenhouse Effect

19 Since recordkeeping began in 1880, temperatures have steadily increased Carbon Dioxide levels in the atmosphere have also increased dramatically since 1960 Refer to P. 424 Figure 17-4 in Text

20 p. 396 Text Greenhouse Effect

21 Potential Effects of The Greenhouse Effect and Global Warming Climate Changes: –Increases in Temperature –Decrease in Precipitations –Rise in Sea Level

22 These Climatic Changes Impact: Health Agriculture Forest Water Resources Coastal Areas Species and Natural Areas Weather Patterns

23 Radiation Forms: Ultra-violet Rays Microwaves X-Rays Sources: Sun Uranium Nuclear weapons/ energy Radon

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25 Noise Pollution Decibel: Measure of intensity of a sound wave Avoiding Noise Pollution: Ear Protectors around machinery Headset at 4 (out of 10) Avoid repeated exposure to sounds over 80 decibels

26 Avoid exposure to painfully loud sounds 80 + decibels

27 Healing the Environment

28 Center for Environmental Research and Training (Univ. of Ca. at San Diego) Carbon Management Group- Works with companies to help reduce e greenhouse gases. Future Forests (FF) Neutralize Co2 by reforestation and use of “clean” energy Provides funding for developing countries to use solar energy instead of fossil fuels

A family of four creates an estimated 15 tons of carbon dioxide emissions per year, (based on a calculation of its daily household energy consumption, the running of two cars and a family holiday in Florida). To offset the greenhouse gases created, 26 trees need to be planted

30 "going carbon neutral", is intended to reduce global warming encourages film-makers to plant trees to "neutralize" the greenhouse gases created in the production of their art.

31 The Rolling Stones paid for a forest on the Isle of Skye to offset the carbon dioxide emitted during their nine-day British tour.paid for a forest on the Isle of Skye It was estimated that to balance the environmental effect of the tour the rock band had to plant 2,800 trees. About 90 per cent of the emissions were created by the fans travelling to see the band, with one tree planted for every 57 fans.

32 "I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait till oil and coal run out before we tackle that." - Thomas Edison