Wang Wenfeng, Ndungu Anne Wairimu, Wang Jun
Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
University of Chinese Academy of Sciences, Beijing, 100049, China.
Arch Environ Contam Toxicol. 2016 Nov;71(4):509-517. doi: 10.1007/s00244-016-0319-z. Epub 2016 Oct 11.
Occurrence and distribution of eight selected endocrine-disrupting compounds (EDCs), including estrone (E1), 17α-ethinylestradiol (EE2), 17α-estradiol (αE2), 17β-estradiol (βE2), estriol (E3), bisphenol A (BPA), 4-nonylphenol (NP), and 4-octylphenol (OP), were investigated in surface water and sediments of the Three Gorges Reservoir region (TGRR). The mean concentrations of E1, αE2, βE2, E3, EE2, BPA, NP, and OP were 10.3, 3.3, 3.7, 17.2, 7.8, 26.6, 10.8, and 32.3 ng L respectively in surface water and 2.6, 4.1, 7.7, 2.4, 11.8, 17.4, 5.0, and 5.3 ng g dry weight (dw) respectively in sediments. BPA, NP, and OP were the main EDCs in both media. Distributions of EDCs in surface water and sediments varied significantly in space but not synchronously. The higher EDCs abundance was found in the upstream water of the TGRR. EDCs concentrations in sediments had no correlations with those in water and the total organic carbon content in sediments. EDCs presented low to high risks in the water, and steroidal estrogens were the main contributors to the total estrogenic activities.
对三峡库区（TGRR）地表水和沉积物中8种选定的内分泌干扰化合物（EDC）进行了调查，包括雌酮（E1）、17α-乙炔雌二醇（EE2）、17α-雌二醇（αE2）、17β-雌二醇（βE2）、雌三醇（E3）、双酚A（BPA）、4-壬基酚（NP）和4-辛基酚（OP）。地表水中E1、αE2、βE2、E3、EE2、BPA、NP和OP的平均浓度分别为10.3、3.3、3.7、17.2、7.8、26.6、10.8和32.3 ng/L，沉积物中分别为2.6、4.1、7.7、2.4、11.8、17.4、5.0和5.3 ng/g干重（dw）。BPA、NP和OP是两种介质中的主要EDC。EDC在地表水和沉积物中的分布在空间上有显著差异，但不同步。在三峡库区上游水体中发现较高的EDC丰度。沉积物中EDC浓度与水中EDC浓度及沉积物中总有机碳含量均无相关性。EDC在水中呈现低到高的风险，甾体雌激素是总雌激素活性的主要贡献者。
