中文摘要：

针对世界各国水体雌激素污染日趋严重的环境问题,文章选择典型天然环境雌激素——17β-雌二醇（E2）为污染源,构建实验室厌氧水体微生态系统,分析E2污染对水体微生物反硝化速率、反硝化终端产物比例和厌氧微生物活性的影响规律。结果表明,E2污染对水体微生物的反硝化速率和活性存在显著性显著抑制作用,但反硝化终产物中N2O的比例得到明显促进。因此,在厌氧条件下,微量E2污染会影响厌氧微生物活性和反硝化作用,对水体的氮素循环产生影响。

英文摘要：

Estrogen in water comes to be the increasingly serious environmental problem. In this study,17β-estradiol and denitrifying bacteria communities were chosen as the study objects. Microecological systems in anaerobic pore water were constructed in laboratory to analyze the impacts of E2 on denitrification and microbial activities. The low concentrations of E2 had an inhibition effect on microbial activities under anaerobic condition. E2 played an inhibiting role in denitrification activity while E2 enhancing the proportion of N2 O. This research indicated that E2 in low concentrations can affect microbial activities in anaerobic water body,therefore affect the self-purification of water bodies and denitrification.