“十五”期间湘江株洲段水质环境监测与分析

Monitoring and Analysis of Water Quality of Xiangjiang River in Zhuzhou City During "Ten-five" Year

根据2001年-2005年湘江株洲段的水质监测数据,选用高锰酸盐指数、生化需氧量、氨氮、铜、锌、氟化物、硒、砷、汞、镉、六价铬、铅、氰化物、挥发酚、石油类、阴离子洗涤剂、硫化物等17项污染指标,采用综合评价方法对湘江株洲段水质变化进行了分析。结果表明:"十五"期间湘江株洲段水质综合污染指数由2001年的5.67下降到2005年的4.67,水质总体上得到改善。但是由于城市和农业废水排放量的增加,总大肠菌群、氨氮、石油类、氟化物和总汞等影响整个水质的主要因子,有明显的上升趋势,须引起有关部门的注意。

According to the local monitoring data of Xiangiiang River in Zhuzhou city from 2001 to2005, seventeen main pollutants including permanganate index, BODs, NH3 -N, Cu, Zn, fluoride, Se, As, Hg, Cd, Cr^6＋, Pb, cyanide, volatilization hydroxybenzene, petroleum, anion surfaetants, and sulfide were selected to assess the water quality of Xiangjiang based on pollution index method. The result showed that the total pollution indices decreased from 5.67 in 2001 year to 4. 67 in2005 year, indicating the whole water quality of Xiangjiang river in Zhuzhou city better than before during ＂ten - five＂ year. However, the pollution indices of some pollutants such as total coliforms, petroleum, ammonia - nitrogen, fluoride, and Hg obviously increased due to the amount of municipal sewage and agricultural wastewater increasing, which should be paid more attention by government.