Trace Metals and Organochlorine Pesticide and PCB Residues in Mussels from England and Wales, 1978

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Abstract
As part of its work on marine environmental protection the Ministry of Agriculture, Fisheries and Food's, Fisheries Laboratory at Burnham-on-Crouch, undertook a mussel survey in England and Wales in 1978. Trace metal, organochlorine pesticide and PCB residue concentrations were determined. The survey comprised about 80 samples covering the whole of England and Wales. The results of the survey showed that in general the contaminant concentrations reflected the expected environmental distributions of the compounds of interest. Samples from areas with significant anthropogenic inputs such as industrial estuaries generally contained the highest concentrations and samples from areas influenced mainly by natural sources usually contained much lower contaminant concentrations, although there were some notable exceptions. The survey indicates the usefulness of a mussel watch approach to monitoring in England and Wales and the suggestion is made that if used on a local more intensive scale the technique should be able to identify in greater detail the likely sources of pollution.