PCBs and organochlorine pesticides in Lake Orta (Northern Italy) sediments

被引：0
|
作者：
Guzzella, L
机构：
[1] Istituto di Ricerca sulle Acque,
[2] C.N.R.,undefined
来源：
WATER AIR AND SOIL POLLUTION | 1997年 / 99卷 / 1-4期
关键词：
PCB; organochlorine pesticide; sediment; organic carbon content; toxicity;
D O I：
10.1007/BF02406864
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
PCB congeners and organochlorine pesticides (DDT, lindane and HCB) distribution were studied in take Orta sediments. The results indicated a contaminated area in the northern part of the sub-basin. The observed high levels of organochlorine compounds (OCs) may be explained by the focusing phenomenon, ie. the preferential transport of lighter and smaller particles from the emission sources to this area. The PCBs and DDT values were correlated with the organic carbon content and the heavy metal contamination. The toxicity of the sediment samples was related also to PCB content. PCBs and OCs pollution of Lake Orta was of the same order of magnitude as in Lake Como, which is the most contamined lake in Northern Italy.
引用
收藏
页码：245 / 254
页数：10
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