作　　者： ; ; ; ; ; (耿婧婧）;

机构地区： 华东师范大学资源与环境科学学院地理信息科学教育部重点实验室

出　　处： 《环境科学》 2014年第12期4671-4677,共7页

摘　　要： 采用超高效液相色谱串联质谱系统(UHPLC-MS2)检测崇明岛9种典型水生生物体中5种典型雌激素的含量,包括雌酮(E1)、雌二醇(E2)、雌三醇(E3)、炔雌醇(EE2)和双酚A(BPA).并探讨其分布特征,进行初步健康风险评价.结果表明,9种典型水生生物中雌激素总量(以dw计)为1.1~7.38 ng·g-1,平均为4.25 ng·g-1.雌激素脂肪含量(以lw计)在5.01~83.41 ng·g-1之间,平均值为40.75 ng·g-1,雌激素脂肪含量水平表现为鱼类>虾类>蟹类.鱼类和蟹类,虾类之间雌激素脂肪含量差异性显著,蟹类和虾类之间不存在显著差异性.从检出率和检出含量看,甾醇类雌激素(E1、E2、E3和EE2)的残留明显低于酚类雌激素(BPA).E1、E2、E3和EE2的检出率小于66.67%,平均干重含量为0.17~0.69ng·g-1,而BPA的检出率高达100%,检出的平均干重含量为2.60 ng·g-1.健康风险评估结果表明,崇明岛水产品中雌激素对健康影响不大. Five typical estrogens, including estrone ( E1), 17β-estradiol ( E2), estriol ( E3 ), 17α-ethynyl estradiol ( EE2 ) and bisphenol A(BPA), were simultaneously determined in typical aquatic organisms from Chongming Island by ultrahigh-performance liquid chromatography equipped with tandem mass spectrometry(UHPLC-MS2 ). The distribution pattern of estrogens was studied and preliminary heath risk assessment was discussed. The results showed that the total dry weight concentrations of estrogens were from 1. 1 ng·g - 1 to 7. 38 ng·g - 1 with a mean of 4. 25 ng·g - 1 . The lipid content-standardized estrogens concentrations were in the range of 5. 01-83. 41 ng·g - 1 with a mean of 40. 75 ng·g - 1 , showing a descending order of fish > shrimp > crab. Fish and crab, fish and shrimp showed a significant difference in lipid content-standardized estrogen concentrations, whereas no significant difference was found between crab and shrimp. Compared to BPA, the dry weight concentrations of steroids (E1, E2, E3 and EE2) were found at lower levels (0. 17-0. 69 ng·g - 1 ) with lower detection frequency ( < 66. 67% ) in aquatic organisms from Chongming Island. In contrast, the detection rate of BPA reached 100% , and the average dry weight concentration detected was 2. 60 ng·g - 1 . The results of health risk assessment showed the concentration of estrogens in aquatic products from Chongming Island could not cause any adverse population-level effects.

关 键 词： 崇明岛 水生生物 雌激素 含量 健康风险评估

领　　域： [环境科学与工程] [环境科学与工程]