黄浦江上游水源地中31种内分泌干扰物的分布特征以及生态风险评价
Occurrence and ecological risk assessment of 31 endocrine disrupting chemicals in the water source of upstream Huangpu River
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摘要: 本文研究了雄激素、雌激素、孕激素、糖皮质激素和工业化合物等5类31种环境内分泌干扰物（endocrine disrupting chemicals，EDCs）在黄浦江上游水源地中的空间分布特征，并采用风险熵值法（risk quotient，RQ）对水体中EDCs的生态风险进行了评价.黄浦江上游水源地9个采样点糖皮质激素和孕激素均未检出，工业化合物双酚类检出率100%.大多物质最高检出浓度<10 ng·L-1，而双酚A（BPA）检出浓度最高（26.00-64.32 ng·L-1）.黄浦江以工业化合物和雌激素类物质污染为主，BPA为各采样点的主要污染物.莲西大桥EDCs总浓度最高（103.66 ng·L-1），水库入口总浓度最低（40.16 ng·L-1）.太浦河上游工业化合物类浓度较下游高，雌激素类最高浓度检出点为汾湖大桥（11.70 ng·L-1）.与国内外地表水中EDCs检出浓度比较，黄浦江上游水源地中EDCs处于中低等污染水平.对己烯雌酚（DES）、雌三醇（E3）、BPA、双酚S（BPS）等4种EDCs进行生态风险评价，RQ范围为0.006-2.5，BPS表现出较高的环境风险（RQ=2.5）.Abstract: In this paper, the spatial distribution of 31 endocrine disrupting chemicals (EDCs), including androgens, estrogens, progesterones, glucocorticoids and industrial compounds, in the water source of upstream Huangpu River was studied, and the risk quotient method (RQ) was used to assess the ecological risk of EDCs in water. Both glucocorticoids and progesterones were not detected at 9 sampling sites. The detection frequency of industrial bisphenols was 100%. The maximum detectable concentration of most substances were lower than 10 ng·L-1, while BPA was detected the highest concentration (26.00-64.32 ng·L-1). Industrial compounds and estrogens were the main detectable substances with BPA as the predominant pollutant at each sampling point. The total concentration of EDCs in Lianxi Bridge was the highest(103.66 ng·L-1) while that of Reservoir Entrance was the lowest (40.16 ng·L-1). The total concentration of industrial compounds in the upper reaches of Taipu River was higher than that in the lower reaches. The highest total concentration of estrogens was detected in Fen lake Bridge(11.70 ng·L-1). Compared with the concentrations of EDCs in surface water in China and abroad, EDCs in the water source of upstream Huangpu River was at low and medium pollution levels. Ecological risk assessment was carried out for 4 EDCs, including Diethylstilbestrol, Estriol, Bisphenol A and Bisphenol S, the range of RQ was 0.006-2.5, and BPS showed a higher environmental risk (RQ=2.5).
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Key words:
- endocrine disrupting chemical /
- Huangpu River /
- water source /
- ecological risk assessment
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