Dioxin-like polychlorinated biphenyls in marine fish from Shandong,China, and human dietary exposure |
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Authors: | Yanping Cao Fenghua Li Jindong Chen Wei Li Yanni Jiao |
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Affiliation: | 1. Department of Chemistry and Physics, Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, Jinan, People’s Republic of China;2. Academy of Preventive Medicine, Shandong University, Jinan, People’s Republic of China |
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Abstract: | The occurrence and human dietary exposure of 12 dioxin-like polychlorinated biphenyls (DL-PCBs) in 41 marine fish samples from Shandong Province of China were investigated. The DL-PCB congeners were extracted using automated Soxhlet extraction, purified via a composite column clean-up procedure and analysed by gas chromatography-triple quadrupole mass spectrometry. DL-PCB congeners were found in all analysed samples, with a mean concentration of 0.887 ng/g ww (wet weight). The TEQ concentrations of DL-PCBs in individual fish samples ranged from 0.011 to 9.214 pg WHO TEQ/g ww. The mean dietary intake for all fish species was 36.5 pg TEQ/kg bw/month, which was lower than the provisional tolerable monthly intake of 70 pg TEQ/kg bw/month set by the Joint FAO/WHO Expert Committee on Food Additives. To monitor the trend of DL-PCBs in fish for food safety control, it is necessary to maintain a surveillance programme. |
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Keywords: | Dioxin-like polychlorinated biphenyls dietary exposure fish coastal city China |
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