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4 Cards in this Set
- Front
- Back
Lead |
Found in paints, pipes, and gasoline. Lead poisoning can lead to kidney damage, metabolic interference, nervous system toxicity, and failure in red blood cell formation. the amount of lead in water today is 2-3 degrees higher than the pre-industrial era. EPA: action level for lead is 15ppb, anything greater than that requires immediate mitigation. |
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Arsenic |
found in Paints, Dyes, preservatives, and pesticides. CCL: Chlorinated Copper Arsenate: a preservative used to pressure treat lumber to withstand weather. the treated lumber is often found n playgrounds, where the arsenic has a chance of ended up in the soil around it. CCL is comprised of 22% As.
MSMA: a common chemical used on cotton fields. this arsenic based pesticide can leach into the soil and potentially end up in the ground water Arsenic poisoning can cause gastro-intestinal and liver problems. skin tumors and skin cancer. EPA: 10ppb or .01ppm |
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Cadmium |
Found in non-ferrous smelting operations can cause renal disease. ocean fluxes have lead to a 60-80% increase in cadmium over natural levels EPA: 5ppb or .005ppm |
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Mercury |
coal burning power plants and gold mining operations release mercury into the atmosphere. in 2000, 2190 tons were released. 60-80& of mercury in the water is due to atmospheric processes. for every 1kg of gold that is acquired, 1.32kg of mercury is released into the environment Methyl Mercury: H3Hg Dimethyl Mercury: (H3)2Hg these are some of the worst neurotoxins in the environment. they lead to neurological disorders and death. mercury can accumulate in fish. LA and MS have fish consumption advisory boards. grouper: .55ppm sea trout: .35ppm Bluefish: .32ppm Tuna (light): about .12ppm Albacore: about .36ppm 71ppm of mercury is hazardous for children, pregnant women, or women who wish to become pregnant. EPA: 2ppb, anymore is unsafe for consumption. |