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  • 1 Nuclear Research Center “Demokritos” Department of Chemistry Athens Greece
  • 2 University of California Division of Natural Sciences Santa Cruz USA
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Seventeen trace elements (As, Ce, Co, Cr, Cs, Eu, Fe, Hg, Hf, La Lu, Rb, Sb, Sc, Sm, Yb and Zn) have been determined by Instrumental Neutron Activation Analysis in sediments from the upper Saronikos Gulf, Greece. It was found that the discharge of industrial and domestic wastes in the Keratsini and Elefsis bays of the upper Saronikos Gulf had led to elevated concentrations of all toxic and other trace elements determined over at least 100 km2 of seafloor. Increases above natural level range from 2 fold for rare earths to 200 fold for arsenic.