FASH215 Lecture Notes - Lecture 11: Screen Printing, Organotin Chemistry, Bioaccumulation
14 Mar 2016
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Bioaccumulation: concentration of dioxin increases along food chain because it dissolves in tissue and if one animal eats a smaller animal, the chemical passes along food chain. Dioxin and phthalate: dioxin more toxic and more persistent, more cancer risk advisory for fish consumption because of chemicals in delaware, guidance about what size of fish, which area of fish, how to prepare. Pcb free- plastic is safer for health. Dioxin is not produced intentionally, is a by-product generated accidentally. By-products of pvc are highly: persistent. Waste from pvc production: global pollutants-foundin deep ocean whale, polar bear and virtually every human being, especially infants. Pvc free or vinyl free : on restricted substance list on rsl. Heavy metal stabilizer: three major metals. Lead: damage brain, reduce cognitive ability and iq in children. Organotins: more dangerous for workers because they are exposed more. Edc: probably carcinogen: in louisinan, near vcm facility significant levelsof dioxins found in blood of people.
