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20 Cards in this Set
- Front
- Back
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What is the difference between bioaccumulation and biomagnification?
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accumulation: low dose but toxic over time, such as ingesting small amounts of arsenic and then getting sick later on in life
magnification: species at the top of the food chain that take in toxic dosages such as the bald eagle |
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What is point-source pollution?
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Sources that are easy to identify and monitor
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What is non-point source pollution
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Pollution that has a poorly defined source, it is scattered and hard to monitor
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True or false: Pollution is equally distributed
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False, pollution is not equally distributed
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In what ways are we empowered?
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1) Economic - To use our $ differently
2) Political - We can be vocal enough to change things and gain power 3) Media - We have the power to be vocal enough on the media to get certain messages across 4) Census - We can use the census to gain information about resources and learn about our minorities |
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What can the pesticide DBT do?
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It can cause breast cancer, miscarriages, infertility
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What are the types of toxins?
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Carcinogens - Cancers
Mutagens - DNA mutations Teratogens - Birth Defects Allergens Neurotoxins - Causes NS / brain damage Endocrine Disruptors - Interferes with hormones |
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What are the three types of pollution?
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Emissions - Pollution released into the air and falls to the water and the ground
Runoff- Pollution on the ground or surface Leaching- Pollution soaking into ground water |
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Whats the difference between hazard and risk?
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Hazard - it can and probably will happen. example: asbestos in schools
Risk - there is a chance it will happen, it is voluntary.. example: putting children in sports |
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What is the quickest "route of pollution"?
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Inhalation, inhaling pollutants is the quickest way into the body
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What are the four types of hazards?
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1) Physical
2) Chemical 3) Biological 4) Cultural |
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What is the difference between chronic and acute?
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Chronic: effect is over a period of years
Acute: life is in immediate danger |
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What defines "pollution"?
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Something released by humans in large enough quantities to harm or effect people or the environment.
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What is the slowest "pollution route"?
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Absorption through the skin
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What predicts the effects of higher doses and predicts toxicity for humans at various levels?
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Dose-response curve
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What is the dose-response curve?
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It predicts the effects of higher doses and predicts toxicity for humans at various levels
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What is Minamata Disease?
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Acute Mercury poisoning, over 12,000 people suffered.
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What is a risk-benefit analysis?
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It is estimating the short and long-term benefits and risks.
1) How important is the thing? For example, pesticides 2) How large is the population of the people that benefits from the pesticides? 3) Do the benefits outweigh the risks? |
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What are the 4 parts of an Impact Assessment?
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1) Hazard Assessment - determines toxicity
2) Dose-response Assessment (How much?) 3) Exposure Assessment (How long?) 4) Risk characterization (How many are impacted? |
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How is the dose-response assessment done?
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It determines toxicities of certain chemicals and toxins by testing on mice and rats and then plotted on a dose-response curve.
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