Abstract
Spatial and temporal distribution of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) was explored in the Dongting Lake area. The concentrations of total PCDD/Fs ranged from 15.4 to 38.9 pg I-TEQ g−1 in surface sediments and 0.55 to 38.9 pg I-TEQ g−1 for sediment core. The vertical distributions of PCDD/Fs in the sediment core reflected the past history of using Na-PCP and the impact of the massive flood events on the distribution of PCDD/Fs to some extent. The sediment still acts as significant PCDD/F sources and they would pose a risk to sensitive species, resulting in the risk for human exposure to PCDD/F.
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Aknowledgements
This work was supported by National Basic Research Program of China (2003CB415006), Knowledge Innovation Program of the Chinese Academy of Sciences (KZCX2-YW-JS406) and National Natural Science Foundation of China (No21007084).
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Xiao, K., Zheng, M., Zhang, B. et al. Polychlorinated dibenzo-p-dioxins and dibenzofurans in the sediment core from a schistosomiasis area with Na-PCP application in China. Bull Environ Contam Toxicol 90, 160–164 (2013). https://doi.org/10.1007/s00128-012-0889-z
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DOI: https://doi.org/10.1007/s00128-012-0889-z