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| What is Bisphenol A (BPA) |
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Definition
| synthetic organic compound |
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Term
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Definition
- leeches into food, air, water, our bodies
- 93 percent of americans have it
- Causes cancer, nerve damage
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Definition
| Assesses environmental factors that influence human health and quality of life |
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Definition
| Occur naturally in environment |
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Definition
| Synthetic and natural chemicals |
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Definition
Result from ecological interactions
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Definition
| Results from our lifestyle |
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| Infectious Disease Kills how many p/year |
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Definition
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Definition
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Definition
| Study of effects of poisonous substances on humans and other organisms |
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| Infectous Disease causes what % of the nations death? |
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Definition
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Definition
| The degree of harm a chemical can inflict |
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| deals with toxic substances that comes from or are discharged into the enviorment |
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Definition
- Modern Americans spend about 90% of lives indoor
- Cigarette smoke and radon are leading indoor hazards and are the top 2 causes of lung cancer
- Asbestos dangerous when inhaled
- lead in pipes and gasoline
- PBDE compund used for fire retardence in:
- computers, television, furniture, plastics
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Term
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Definition
- Chemicals have given us high standard of life
- Industrial agriculture of food
- Modern materials and converniances
- Medical Advances
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Term
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Definition
| Toxic chemicals manufactored in the tissues of living organisms |
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Term
| Synthetic Chemicals in Enviorment |
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Definition
- Babies born with chemicals in body
- pesticides for insects and weeds find way into soil, air, and water - and into humans
- Humans carry over 100s of industrial chemicals in our body
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Term
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Definition
- Organisms are used to natrual toxicans
- Surface barriers - Skin, scales, feathers
- We can store toxins
- defenses can be overloaded if levels get too high
- No defense against synthetics
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Term
Different individuals respond to hazards differently
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Definition
- genetics can alter responses
- people in poor health are more sensitive
- sensitivity varies dependent on age and sex
- EPA sets standards for response based on adults, not infants who are more sensitive
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Definition
- High exposure for a short time
- easy to recognize
- stem from a distinct event
- toxicty tests reflect effects of acute toxicity
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Definition
- Low exposure
- More common
- harder to detect
- effects organs gradually
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Definition
- some degrade quickly and become harmless
- Some degrade and become more toxic
- toxicants can degrade into simpler products
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Definition
- runoff concentrates contaminants in surface water
- Waste water treatment plants release toxins, pharmaceuticals, and detoxification products
- water soluble chemicals enter organisms through drinking and absorption
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Term
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Definition
| The study of the earths physical features, process, and history |
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Term
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Definition
Solid iron in the center
- Molten iron in the outer core
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Term
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Definition
Thick layer of dense, elastic rock called the mantle
- portion of upper mantle called asthesosphere contains soft rock, melted in some areas
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Definition
harder rock above asthenosphere
- contains mantle and the crust
- Crust: brittle; low density, thin
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Term
| Order from center layers of earth(5) |
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Definition
- inner core
- outter core
- lower mantle
- upper mantle
- crust
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