Mason C F
Department of Biological Sciences, University of Essex, Colchester, UK.
Chemosphere. 1998 Apr;36(9):1969-71. doi: 10.1016/s0045-6535(97)10081-9.
A decline in total PCB levels in tissues of otters (Lutra lutra) from England and Wales, averaging 8% per year over the period 1983-1992, is reported. Mean PCB levels are now unlikely to pose a threat to otter populations.
据报告,1983年至1992年期间,英格兰和威尔士水獭(水獭属)组织中的多氯联苯总量呈下降趋势,平均每年下降8%。目前,多氯联苯的平均含量不太可能对水獭种群构成威胁。