Composition and Sources of Persistent Organic Pollutants

Outer sea Laizhou Bay Bohai Bay Qinhuangdao Liaodong Bay Jinzhou Bay 

Liaohe River and Shuangtaizihe River Liaodraig Peninsula 

The percentages of p,p -DDE, p,p -DDD, o,p -DDT, and p,p -DDT in mol-lusks were shown in Fig. 2.67, whose original data was obtained from Yang RQ et al. (2004). The residual levels in the same species in different cities were different, but in the same city the residual levels of p,p -DDE, p,p -DDD did not vary significantly, indicating that the bioaccumulation capacities were not 

Paint Factory, which used 5-Cl PCB as a paint additive in the 1960s (Zhao et ah, 2005). 

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