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Binational Toxics Strategy
GLBTS Persistent toxic Substances
The GLBTS establishes reduction challenges for twelve “Level I” persistent toxic substances: alkyl-lead, benzo(a)pyrene [B(a)P], hexachlorobenzene (HCB), dioxins and furans, mercury, octachlorostyrene (OCS), polychlorinated biphenyls (PCBs), and five canceled pesticides (aldrin/dieldrin, chlordane, DDT, mirex,and toxaphene). The US has also identified “Level II” substances for pollution prevention activities: 1,2,3,4-tetrachlorobenzene; 1,2,4,5-tetrachlorobenzene; pentachlorobenzene; hexachlorobutadiene; and hexachlorocyclohexanes. See http://www.epa.gov/glnpo/bns/strategy.html.
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