Marine pollution in Orkney

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Abstract
This paper briefly reviews the legal framework of pollution control in Orkney, and discusses the occurrence of the main categories of contaminants there.There is no indication of elevated concentrations of organohalogen compounds in Orkney shellfish. The main potential source of hydrocarbon contamination is thoroughly monitored, and no major adverse effect has been noted.High concentrations (up to 62 μg/g wet wt) of cadmium occur in edible crab hepatopancreas from Orkney, Shetland and surrounding areas. A consideration of cadmium concentrations in a range of species suggests a regional geochemical anomaly for cadmium, affecting biota perhaps through solid phases.