The status and trends of trace element and organic contaminants in oysters, Crassostrea irginica, in the waters of the Carolinas, USA

Concentrations of eight trace elements ŽAs, Cd, Cu, Hg, Ni, Pb, Se and Zn., lindane and six groups of organic contaminants Žtotal-chlordane, total-PCB, total-DDT, Dieldrin and Aldrin, total-butyltins, total-PAHs. at the 11 NOAA mussel watch project ŽMWP. sites located in North and South Carolina have been compared with the national US MWP data. Three sites from North and South Carolina had concentrations of PAHs in the upper 15th percentile on a national scale. One site had high concentrations of butyltins, and two sites had high Se concentrations. All sites from Beaufort, North Carolina, south had high As concentrations. Decreasing temporal trends were found for As, Cd, total-chlordane, DDT, PCB, and PAHs at some sites.