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Distribution and seasonal variation of estrogenic endocrine disrupting compounds,N-nitrosodimethylamine, and N-nitrosodimethylamine formation potential in the Huangpu River, China

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Journal of Environmental Sciences 2014年第5期26卷 1023-1033页

作者： Ai Zhang Yongmei Li Ling Chen State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and Engineering Tongji University

Detection of estrogenic endocrine disrupting compounds （EDCs） and N-nitrosodimethylamine （ndma） in drinking water has led to rising concerns. There are, however, a paucity of studies on the distribution and seasonal variation of ndma and ndma formation potential （ndma-fp） in natural waters, especially in China. For EDCs, limited studies have investigated the distribution and seasonal variation of estrone （El）, 1713-estradiol （E2）, estriol （E3）, 17a-ethinylestradiol （EE2）, technical-nonylphenols （t-NP）, and bisphenol A （BPA） in Shanghai. In this study, water samples were collected from 11 sampling sites along the Huangpu River in 2012. The distribution and seasonal variation of EDCs, ndma, and ndma-fp were investigated. The results showed that all of the 11 sampling sites were contaminated by the target compounds. Compared with E2 and EE2, higher E1 and E3 concentrations were usually detected in the Huangpu River. The values of 17β- estradiol equivalents （EEQ） suggest a high possibility of endocrine effects on exposed organisms in the Huangpu River. ndma-fp and t-NP were the dominant contaminants among the eight target compounds. The detection rates of the target compounds and their concentrations were both higher in dry seasons than in wet seasons. Higher concentrations of target compounds were observed in urban sampling sites near drainage outlets, and also in suburban sampling sites where intensive livestock farming and farmlands were located.

关键词： EDCs ndma ndma-fp seasonal variation spatial distribution

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