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HCHs and DDTs in sediment-dwelling animals including mollusks and crabs from the Yangtze Estuary were determined by GC-ECD. Levels of t-HCH were in the range of 1.2–5.5ngg −1 and averaged 3.5ngg −1 in mollusks, while t-DDT concentrations ranged from 26.0 to 68.8ngg −1 , with a mean of 34.5ngg −1 . In crabs t-HCH concentrations varied from 2.0 to 25.7ngg −1 and...
Very limited information is available on body burdens and environmental levels of dioxins and dioxin-like PCBs (dl-PCBs) in mainland China. In the current studies, human milk samples were collected from 30 breastfeeding mothers in Shijiazhuang city (industrialized) and 11 in the Tanshan countryside (agricultural) of Hebei Province in northern China. An additional 20 samples were obtained from mothers...
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