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Mussel Watch results from coastal waters of the United States for 1986 through 1996 show decreasing trends in molluscan concentrations of chlorinated hydrocarbons, butyltins, and cadmium. Weaker cases for decreases exist for copper, zinc, and silver. Concentrations of polycyclic aromatic hydrocarbons, arsenic, mercury, nickel, lead, and selenium show no overall trend.
Seven male sperm whales stranded on the southern North Sea coast during the 1994/95 winter were analysed for stable pollutant concentrations in muscle, liver, kidney and blubber: heavy metals (total and organic Hg, Se, Zn, Pb, Ni, Cd, Fe, Cr, Cu and Ti), organochlorines (PCBs and pesticides) and polycyclic aromatic hydrocarbons (PAHs). High concentrations of Cd (up to 300 μg/g dw in kidney), Hg (up...
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