Abstract：
:The spatial distribution and source of polychlorinated biphenyls (PCBs) in 30 surface sediments of Yueqing Bay, Xiangshan Bay, and Sanmen Bay in Eastern China were analysed. Total concentrations of PCBs ranged from 9.33 to 19.60 ng g(-1) dry weight for all the sampling stations. The observed PCB levels were lower than those in areas of high urbanisation or contamination in the bay. Low-chlorinated PCBs, dominated by tri-PCB, were identified as the prevalent contaminate of surface sediments, and the top three PCB congeners were lighter chlorinated congeners (PCB 8, PCB 18 and PCB 28). These results were in agreement with the fact that tri-PCB compounds are the dominant contaminants in China. The result of the principal component analysis revealed that all samples were similar in composition to Aroclor 1242, suggesting they might originate from electrical capacitors and transformers. The levels of PCBs were significantly correlated with the total organic carbon in the sediments.
journal_name
Chemospherejournal_title
Chemosphereauthors
Yang H,Xue B,Jin L,Zhou S,Liu Wdoi
10.1016/j.chemosphere.2010.12.070subject
Has Abstractpub_date
2011-03-01 00:00:00pages
137-43issue
2eissn
0045-6535issn
1879-1298pii
S0045-6535(10)01475-Xjournal_volume
83pub_type
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