Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education of Hohai University, College of Environmental Science and Engineering, Hohai University, 210098 Nanjing, People's Republic of China.
Bull Environ Contam Toxicol. 2010 Apr;84(4):406-12. doi: 10.1007/s00128-010-9944-9. Epub 2010 Mar 6.
Estrogenic activities and main causative fractions in three representative sections of Yangtze River (Nanjing section) were determined. The results showed that significant vitellogenin (VTG) and 17beta-estradiol (E(2)) induction and gonad atrophy were observed. Estradiol equivalents of actual water samples from Jiangxinzhou section, Sanchahe section and Daqiao section were 0.3651, 0.1301 and 0.5060 ng L(-1), respectively. Polar contaminants were responsible for the estrogenic activities in Jiangxinzhou section and Daqiao section while mid-polar and nonpolar contaminants resulted in majority of the estrogenic activity in Sanchahe section. To Jiangxinzhou section, Sanchahe section and Daqiao section, good positive correlations between VTG and E(2) (the correlation coefficients were 0.737, 0.690 and 0.817, respectively) and good inverse correlations between VTG and gonado-somatic index (GSI; the correlation coefficients were -0.838, -0.540 and -0.794, respectively) were obtained, whereas the correlations between E(2) and GSI were relatively poor (the correlation coefficients were only -0.557, -0.620 and -0.509, respectively).
测定了长江（南京段）三个代表性断面的雌激素活性及其主要成因组分。结果表明，该江段水体中存在明显的卵黄蛋白原（VTG）诱导和 17β-雌二醇（E（2））诱导以及性腺萎缩现象。江心洲断面、三岔河断面和大桥断面实际水样的雌二醇当量分别为 0.3651、0.1301 和 0.5060ng/L。江心洲断面和大桥断面的雌激素活性主要由极性污染物所致，而三岔河断面的雌激素活性则主要由中极性和非极性污染物所致。对于江心洲断面、三岔河断面和大桥断面，VTG 与 E（2）之间存在良好的正相关关系（相关系数分别为 0.737、0.690 和 0.817），VTG 与性腺-体指数（GSI）之间存在良好的负相关关系（相关系数分别为-0.838、-0.540 和-0.794），而 E（2）与 GSI 之间的相关性则相对较差（相关系数仅为-0.557、-0.620 和-0.509）。
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