Toxic Pollutants

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Metal: Lead• Properties:– A heavy metal commonlyfound in sulfide ores.– Found naturally in the air,soil, water and plants.– In it’s s pure form it is abluish-white shiny metal.Uses:- Plumbing material- Previously used as a pigmentbase in paint.- Gasoline additive- Lead-acid acid batteries, a typicalcar batteryhomepages.ihug.co.nz/ ~pincha/glassmins.htmlmicro.magnet.fsu.edu/.../ batteries/leadacid.html
Metal: Lead• Sources of Exposure:– Drinking water can become contaminated when lead pipes and storage tanksbecome corroded, in the presence of soft water.– Lead paint chips are often consumed by small children. Paint chips are oftenfound in older houses.– Fumes from lead ore smelters are generally localized, but still have an impacton the environment.– Lead gasoline has been effectively phased out in the USA, however r othercountries still use lead gasoline, which emits lead into the environment.– The decomposition of lead-acid acid batteries in local waste sites can also lead tothe contamination of local streams.• Health Effects:-The ingestion of lead by children can cause slowed growth and nervoussystem disorders such as hyperactivity.-In adults high levels of lead can cause reproductive problems, nervous nsystemdisorders, joint pain, memory and concentration problems and digestiveproblems.
Page 1 and 2: Courtney and CarolynEnvironmental C
Page 3 and 4: What is a “toxic pollutant?”•
Page 5 and 6: Nonmetal: Asbestos• Source of Exp
Page 7 and 8: Nonmetal: Benzene• Sources of Exp
Page 9 and 10: Nonmetal: DDT•Sources of Exposure
Page 11 and 12: Nonmetal: Dioxins• Health Effects
Page 13: Nonmetal:Chlorofluorocarbonhttp://w
Page 17 and 18: Metal: Mercury• Health Effects:-
Page 19 and 20: Metal: Arsenic• Health Effects:-
Page 21 and 22: Metal: Cadmium• Health Effects:-
Page 23 and 24: Metal: Chromium• Health Effects:-
Page 25 and 26: ReferencesMitchell, Mark K. and Wil

Toxic Pollutants

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