Toxicity and heavy metal contamination of surficial sediments from the Bay of Thessaloniki (northwestern Aegean Sea) Greece

摘要

Surfaicial sediments(the fraction<2000μm) from the Bay of Thessaloniki, in the Northwestern Aegean Sea, Greece were examined for heavy metal and organic carbon contents, as well as for acute LUMIStox~R toxicity of pore waters (PWs), wet sediment elutriates(WSEs) and dry sediment elutriates(DSEs) obtained from the solid material remaining after PW extraction. WSEs where not toxic. EC_20/50 values could be measured in some DSE and PW samples. In all sediment samples, the DSE toxicity was greater than the corresponding PW toxicity.