Jin Tao, Lü Xue-Min, Zeng Yi-Fan, Zhang Bing-Bing, Ma Kun-Peng, Jiang Pu, Tang Fei
Key Laboratory of Environment and Health of Ministry of Education, School of Public Health, Institute of Environmental Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
Huan Jing Ke Xue. 2013 Apr;34(4):1351-6.
A total of 43 source water and finished water samples were collected from the Yangtze River and Taihu Lake in WX and SZ areas of Jiangsu Province from October 2010 to March 2012. The XAD-2 resin was applied to absorb the organic compounds in each water sample respectively. After the procedure of elution, concentration and drying, nonvolatile organic compounds (NVOCs) were obtained. The recombinant yeast estrogen screen test was then applied to evaluate the estrogenic activities of NVOCs in each water sample. The results showed that all of the source water collected from the Yangtze River and Taihu Lake possessed estrogenic activities. The EEQ values of source water from Taihu Lake were 0.04-2.07 ng x L(-1), and the volume of EC(25-E2) were 9.06-31.62 mL; the EEQ values of source water from Yangtze River were 0.69-1.15 ng x L(-1), and the volume of EC(25-E2) were 9.06-31.62 mL. The samples from Taihu Lake in SZ area had higher estrogenic activities than the samples collected from WX area. No estrogenic activity was detected in 58.3% of the finished water samples after the treatment in water plants. The water plants which collected source water from the Yangtze River and from Taihu Lake reduced the estrogenic activities by 80.3% -100% and 55.5% -100%, respectively.
2010年10月至2012年3月，从江苏省无锡市和苏州市的长江及太湖采集了43份源水和成品水样本。分别采用XAD - 2树脂吸附各水样中的有机化合物。经过洗脱、浓缩和干燥过程，得到了非挥发性有机化合物（NVOCs）。然后应用重组酵母雌激素筛选试验评估各水样中NVOCs的雌激素活性。结果表明，从长江和太湖采集的所有源水均具有雌激素活性。太湖源水的EEQ值为0.04 - 2.07 ng·L⁻¹，EC₂₅ - E₂体积为9.06 - 31.62 mL；长江源水的EEQ值为0.69 - 1.15 ng·L⁻¹，EC₂₅ - E₂体积为9.06 - 31.62 mL。苏州地区太湖的样本比无锡地区采集的样本具有更高的雌激素活性。在水厂处理后的成品水样本中，58.3%未检测到雌激素活性。从长江和太湖采集源水的水厂分别将雌激素活性降低了80.3% - 100%和55.5% - 100%。
