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Environmental Health Ch 17 When the sun rises, I go to work. When the sun goes down, I take my rest....
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Environmental Health Ch 17 Environmental Health Ch 17 When the sun rises, I go to work. When the sun rises, I go to work. When the sun goes down, I take my When the sun goes down, I take my rest. rest. I dig the well from which I drink, I dig the well from which I drink, I farm the soil that yields my food. I farm the soil that yields my food. I share creation, Kings can do no I share creation, Kings can do no more. more. -- Ancient Chinese Proverb, 2500 B.C. -- Ancient Chinese Proverb, 2500 B.C.
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Transcript of Environmental Health Ch 17 When the sun rises, I go to work. When the sun goes down, I take my rest....
Environmental Health Ch 17Environmental Health Ch 17
When the sun rises, I go to work.When the sun rises, I go to work.When the sun goes down, I take my rest.When the sun goes down, I take my rest.
I dig the well from which I drink, I dig the well from which I drink, I farm the soil that yields my food.I farm the soil that yields my food.
I share creation, Kings can do no more.I share creation, Kings can do no more.
-- Ancient Chinese Proverb, 2500 B.C.-- Ancient Chinese Proverb, 2500 B.C.
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EnvironmentEnvironment
The multitude of dynamic conditions The multitude of dynamic conditions that are external to the personthat are external to the person
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Environmental Health
The collective interactions of humans with the environment and the short-term and long-term health consequences of those interactions
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"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)
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"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
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What are some classic environmental concerns?
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Water QualityAir QualityWaste DisposalPopulationGreenhouse Effect and Global WarmingChemical PollutionRadiationIndoor Air Pollution
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An Inconvenient Truth: Al Gore
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Clean Water
Water Contamination and Treatment.FluoridationWater-treatment plants
Water shortagesOnly 35% of the world’s population has an adequate water supply
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Waste Disposal
Sewage•Septic system•Heavy metal•Polychlorinated biphenyls (PCBs)
Solid waste•Garbage•Sanitary landfill
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Waste DisposalWhat You Can Do to Reduce Garbage
Products with least amount of packagingProducts made of recycled paper or recyclable productsAvoid using foam or paper cupsStore food in glass jars and reusable plastic containersRecycle newspapers, glass, cans, paper, and any other recyclablesStart a compost pileStop junk mail
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Population Growth
World’s population currently estimated at 6.1 billion
Increasing by 78 million per yearTo exceed 9 billion by 2050
How Many People Can the World Hold?FoodAvailable land and waterEnergyMinimum acceptable standard of living
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World Population
Factors That Contribute to Population Growth
High fertility ratesLack of family planning resources Lower death rates
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An estimated ______% of the U.S. population live in communities that fail to meet 1 or more federal air quality standards.
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Pollution
Air pollutionKey Terms:
• EPA- Environmental Protection Agency
• AQI- Air Quality Index• Smog• Thermal Inversion • Acid Rain
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P. 423 Text Greenhouse Effect
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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
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p. 396 Text Greenhouse Effect
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Potential Effects of The Greenhouse Effect and Global Warming
Climate Changes:
– Increases in Temperature
– Decrease in Precipitations
– Rise in Sea Level
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These Climatic Changes Impact:
HealthAgriculture ForestWater ResourcesCoastal AreasSpecies and Natural AreasWeather Patterns
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Radiation Forms:Ultra-violet RaysMicrowavesX-Rays
Sources: Sun
Uranium Nuclear weapons/ energy Radon
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Noise Pollution
Decibel: Measure of intensity of a sound wave
Avoiding Noise Pollution:Ear Protectors around machineryHeadset at 4 (out of 10)Avoid repeated exposure to sounds over 80 decibels
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Avoid exposure to painfully loud sounds 80 + decibels
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Healing the Environment
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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” energyProvides 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
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"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.
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The Rolling Stones paid for a forest on the Isle of Skye to offset the carbon dioxide emitted during their nine-day British tour. 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.
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"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
