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Chlorinated hydrocarbons, PCBs and cesium isotopes in otters (Lutra lutra L.) from Central Finland
Annales Zoologici Fennici
Vol. 25, No. 4 (1988), pp. 271-276
Published by: Finnish Zoological and Botanical Publishing Board
Stable URL: http://www.jstor.org/stable/23734630
Page Count: 6
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The material consists of 11 otters found dead in Central Finland in the 1980s. The concentrations of many hazardous chemicals were low in the fresh weight of liver: alfa- and oxychlordane, HCB, lindane, DDT, DDD, DDE, PCB and dieldrin. The maximum value was 2.5 ppm of PCB. However, the lipid contents were higher, being on an average 29±14 ppm (maximum 150) of PCB. Mirex and toxaphene were not detected using a minimum detection level of one ng/g (=0.001 ppm). The effect of the Chernobyl power plant explosion in spring 1986, 1300 km SSE of the study area, can be clearly seen in increased cesium contents. The residues of chemicals were not higher in the older animals.
Annales Zoologici Fennici © 1988 Finnish Zoological and Botanical Publishing Board