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Study on the pollution status of PCDD/Fs and PCBs in sludge and crucian from typical polluted areas of Zhejiang Province

Study on the pollution status of PCDD/Fs and PCBs in sludge and crucian from typical polluted areas of Zhejiang Province

Wei Sheng Yan Jiu 38(1): 92-95

To reveal the pollution status of PCDD/Fs and PCBs in sludge and crucian from typical polluted areas of Zhejiang Province. After having been spiked the 13C-labeled surrogate internal standards, the extracts were purified by a series of columns like GPC, multiple silica columns and alumina columns, and then analyzed hy HRGC-HRMS. Concentration ranges of dioxins and PCBs in sludge and Crusians from five areas were 379.6-9811.6 pg/g dry weight, 10,000-762,433 pg/g dry weight and 0.084-12.l68 pg/g wet weight, 149.03-57,304 pg/g wet weight, respectively. Ranges of total WHO-TEQ in sludge and crucians are 11.2-2162 pg/g dry weight and 0.234-39.251 pg/g wet weight. A wide variety of concentrations of dioxins and PCBs in sludge and crusians from five areas were detected, especially for that of Luqiao. For the pollution status of Luqiao, effluents of E--waste recycling industries maybe are the main sources of PCB exposure. The environment is now heavily threatened by such pollutants.

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Accession: 055980521

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PMID: 19267086

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