乌鲁木齐市水磨河水质状况评价与污染成因分析

The Evaluation of the Current Situation of the Water Quality and the Analysis of the Reason for Pollution in Shuimo-river in Urumqi

利用单因子指数法和综合污染指数法,对乌鲁木齐市水磨河4个监测断面水质情况进行了评价。结果表明:搪瓷厂泉为超标水体;七纺桥为Ⅴ类水体,达到农业灌溉用水要求;联丰桥断面、米泉桥断面为劣Ⅴ类水体,没有达到农业灌溉用水要求。生活源和工业源化学需氧量、氨氮等污染物的排入对水体产生了严重影响,造成水体重污染。

By the methods of evaluation with single-factor and index of comprehensive pollution,the quality of water in Shuimo-river in Urumqi could be comprehensive evaluated from four monitoring cross sections.The results showed that： the water in the cross sections of enamel-factory was super-standard,the water in the cross sections of Qifang-bridge was Level V which could reach the criteria for agricultural irrigating.The water in the cross sections of Lianfeng-bridge and Miquan-bridge were less than Level V which could not reach the criteria for agricultural irrigating.The discharging of COD and ammonia nitrogen from living and industrial water-contaminant influenced the water quality,and lead to water polluted seriously.