Polychlorinated Dibenzo-p-dioxins (PCDDs) and Dibenzofurans (PCDFs) and Polychlorinated Biphenyls (PCBs) in Water Samples from the Middle Reaches of the Yangtze River, China

被引:0
作者
Qin Zhang
Lirong Gao
Minghui Zheng
Lidan Liu
Cheng Li
机构
[1] Chinese Academy of Sciences,State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco
来源
Bulletin of Environmental Contamination and Toxicology | 2014年 / 92卷
关键词
PCDD/Fs; PCBs; Yangtze River; Water;
D O I
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中图分类号
学科分类号
摘要
Few studies have been conducted to investigate the polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs) and polychlorinated biphenyls (PCBs) in freshwater since the volume of water needed for dioxin analysis is large. In this study, 19 water samples from the middle reaches of the Yangtze River were analysed for the levels of PCDD/Fs and dioxin-like PCBs (dl-PCBs). The results showed that the concentration ranges of PCDD/Fs and dl-PCBs were 0.6–8.5 and 2.0–15.8 pg/L, respectively, which were relatively low compared with those reported in the literature. The WHO-TEQ concentration range of dioxins was 0.002–0.040 pg/L. The PCA results indicated that the main sources of PCDD/Fs may be the applications of pentachlorophenol or sodium pentachlorophenate and domestic wood and coal burning. For dl-PCBs, domestic wood burning and coal burning were the main sources.
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页码:585 / 589
页数:4
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