Heavy metal content of oysters from the Lynher Estuary, U.K

The concentrations of As, Cd, Hg, Pb and Zn have been determined in oysters and sediments from the Lynher Estuary, U.K. The sediments contained high levels of Cu, Fe, Pb and Zn probably associated with run off from a metalliferous catchment area and high Hg associated with a local sewage input. In c...

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Published inThe Science of the total environment Vol. 22; no. 3; p. 235
Main Authors Bland, S, Ackroyd, D R, Marsh, J G, Millward, G E
Format Journal Article
LanguageEnglish
Published Netherlands 01.01.1982
Subjects
Animals
England
Escherichia coli - isolation & purification
Metals - analysis
Ostreidae - analysis
Ostreidae - microbiology
Soil Pollutants - analysis
Water Pollutants, Chemical - analysis
England
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Summary:The concentrations of As, Cd, Hg, Pb and Zn have been determined in oysters and sediments from the Lynher Estuary, U.K. The sediments contained high levels of Cu, Fe, Pb and Zn probably associated with run off from a metalliferous catchment area and high Hg associated with a local sewage input. In contrast, the analyses of the oyster tissue showed that only Cu and Zn were concentrated in the flesh. The majority of samples contained coliform bacteria in excess of 1000 organisms per ml of tissue. It is concluded that the quality of the oysters from this fishery was limited by the bacteriological cleanliness rather than toxic metal content.
ISSN:0048-9697
DOI:10.1016/0048-9697(82)90067-5