CONTAMINATION OF FISH FROM DIFFERENT AREAS OF THE RIVER SEINE (FRANCE) BY ORGANIC (PCB AND PESTICIDES) AND METALLIC (CD, CR, CU, FE, MN, PBAND ZN) MICROPOLLUTANTS

Organochlorine and metal pollution were studied in fish from different sites of the river Seine situated upstream and downstream of Paris. T he metal content in roach were similar to those usually found in fresh water fish species. The PCB and the Pb pollutant levels in the fish ev olved similarly along the river: from 1300 to 16000 mug/kg dry weight for the PCBs and from 0.3 to 9.5 mg/kg for Pb, while the content of ot her metals did not change. The stations with the highest organochlorin e contents are situated downstream from the Parisian discharges where there is a reduction of fish species present from 31 to 18. Fish caugh t at one station situated downstream from an industrial area (Guernes) contained a higher proportion of tri- and tetrachlorobiphenyls than f ish from the other stations. Their muscle contents are above the Frenc h Food Standard of 2 ppm for PCB in fresh muscle.