CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Department of Chemistry, University of Gujrat, Gujrat 50700, Pakistan.
CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
Mar Pollut Bull. 2019 Aug;145:370-376. doi: 10.1016/j.marpolbul.2019.05.016. Epub 2019 Jun 5.
In the present study, 13 endocrine disrupting compounds (EDCs) and their transformation products (TPs) were monitored in Jiulong River and its estuary, China in different seasons. The analytes included antimicrobials [triclosan (TCS) and triclocarbon (TCC)]; estrogens [estrone (E1), estradiol (E2), estriol (E3) and ethinylestradiol (EE2)]; alkylphenol ethoxylates [4-n-nonylphenol (NP) and 4-n-octylphenol (OP)] and the TPs [methyl triclosan (MeTCS), carbanilide (NCC), dichlorocarbanilide, 4-hydroxy estrone (4-OH E1) and 4-hydroxy estradiol (4-OH E2)]. A significant seasonal variation was observed for most EDCs. Approximately, 79% of the total E2 residues were detected in the normal season in comparison with the wet season to indicate recalcitrant behavior of E2 during the normal season. Risk assessment revealed that E2 was most potent among the EDCs to cause highest risk to both vertebrate and invertebrate aquatic species, whereas, E1, EE2, MeTCS and TCS also showed relatively high risk for some surface water aquatic species.
在本研究中，监测了中国九龙江及其河口在不同季节中的 13 种内分泌干扰化合物（EDCs）及其转化产物（TPs）。分析物包括抗菌剂[三氯生（TCS）和三氯卡班（TCC）]；雌激素[雌酮（E1）、雌二醇（E2）、雌三醇（E3）和乙炔雌二醇（EE2）]；烷基酚聚氧乙烯醚[4-壬基酚（NP）和 4-辛基酚（OP）]和 TPs[甲基三氯生（MeTCS）、卡巴酰胺（NCC）、二氯卡巴酰胺、4-羟基雌酮（4-OH E1）和 4-羟基雌二醇（4-OH E2）]。大多数 EDCs 表现出明显的季节性变化。与雨季相比，正常季节中约有 79%的总 E2 残留被检测到，这表明 E2 在正常季节中表现出顽固的行为。风险评估显示，E2 是 EDCs 中最具潜力的一种，对脊椎动物和无脊椎水生物种造成的风险最高，而 E1、EE2、MeTCS 和 TCS 对一些地表水水生物种也表现出相对较高的风险。
