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2011年8月,对湄洲湾海域表层水体中雌激素类化合物(EDCs)进行了调查。在湄洲湾表层水体中,仅检出雌三醇(E3)、双酚A(BPA)和4-壬基酚(NP)三种EDCs,其总浓度范围为:(15.47~1997.74)ng/L,平均值为274.64±545.91 ng/L。以BPA和NP为主雌激素污染处于中等的水平,湄洲湾中部密集工业污水排放是其主要来源。BPA的浓度从湾内向湾外有逐渐递减的趋势,NP的浓度在大多数站位水平相当,湄洲湾的水动力条件及沿岸的化工企业污水排放影响其的分布。利用商值法得出湄洲湾BPA的残留水平存在生态风险,联合雌激素效应作用可能对该区域的生态环境造成危害。
In August 2011, estrogenic compounds (EDCs) in the surface water of the Meizhou Bay watershed were investigated. Only three kinds of EDCs such as estriol (E3), bisphenol A (BPA) and 4-nonylphenol (NP) were detected in surface water of Meizhou Bay. The total concentration of EDCs was (15.47 ~ 1997.74) ng / L, with an average of 274.64 ± 545.91 ng / L. BPA and NP-based estrogen at a moderate level of pollution, the central intensive Meizhou Bay wastewater discharge is its main source. The concentration of BPA tends to decrease gradually from the bay to the bay. The concentration of NP is similar at most of the stations. The hydrodynamic conditions of Meizhou Bay and the sewage discharge of chemical enterprises along the coast affect its distribution. The use of the quotient method to derive the residual risk of BPA in Meizhou Bay poses ecological risk. The combined effect of estrogen may harm the ecological environment in this area.