Polychlorinated biphenyls in small mammals from contaminated landfill sites.

摘要: PCBs in small mammals living a contaminated landfill site varied both concentration and congener composition, reflecting the feeding strategy of each species chlorination congeners. Body concentrations SigmaPCB on 1:1:1 Arochlor (1242:1254:1260) basis gave rank order Sorex araneus >> Apodemus sylvaticus > Microtus agrestis. Comparisons with data for other PCB-contaminated sites suggest that values S. from may be sufficient magnitude to inhibit reproductive capability cause major organ dysfunction. There were also inter-specific differences whole body individually quantified For araneus, selected ICES 7 marker PCB congeners was: No. 153>138>>180>118>>28>101>52. In M. agrestis 28>118>153>138>180, 52>101. The A. differed agrestis, but was more similar latter, being: 153>138>118>180>28>52, 101. contribution different reflects degree varies species. insectivorous heavily chlorinated (Nos 153, 138 180) are most abundant, whereas herbivore, showed Nos 28 118 present highest amounts, whilst equivalent pattern omnivorous intermediate between high relative species, suggests it serve as useful biomarker terrestrial environmental pollution by organochlorines.