改进内梅罗污染指数法在河道水质评价中的应用  

The application of the improved Nemerow index method in the evaluation of river water quality

作　　者：陈天池 李昂[1] 卞唯嘉 陈慧敏 Chen Tianchi;Li Ang;Bian Weijia;Chen Huimin(School of Environmental Engineering,Xuzhou Institute of Technology,Xuzhou 221111,China)

机构地区：[1]徐州工程学院环境工程学院,江苏徐州221111

出　　处：《供水技术》2022年第4期21-25,共5页Water Technology

基　　金：徐州市重点研发课题(KC19218)。

摘　　要：以某市汇水流域内河道8个监测断面2019年9个月的监测数据为基础,选取五日生化需氧量(BOD_(5))、化学需氧量(COD)、氨氮(NH_(3)-N)、总磷(TP)为评价指标,采用改进的内梅罗污染指数法进行水质评价,并将评价结果与传统的内梅罗污染指数法比较。评价结果表明:TP的权重值最大,对整个水质评价体系的影响最大;改进内梅罗指数的评价结果与实际情况更相符,所评价的8个监测断面中仅有1个断面达到Ⅲ级水标准,2个断面达到Ⅳ级水标准,5个断面受到严重污染,属于Ⅴ级水。Based on the nine-month monitoring data of eight sections of river in the catchment basin of a city in 2019,the contamination factors of five-day biochemical oxygen demand(BOD_(5)),chemical oxygen demand(COD),ammonia nitrogen(NH_(3)-N),and total phosphorus(TP)were selected as evaluation indicators,and the improved Nemerow index method was used for water quality evaluation,and the evaluation results were compared with the traditional Nemerow index method.The evaluation results showed that the weight value of TP was the largest,and the impact on the entire water quality evaluation system was the greatest.The evaluation result of improved Nemerow index was more consistent with the actual situation,with only one of the eight monitoring sections achieving levelⅢ,two sections achieving levelⅣ,and five sections seriously polluted and belonged to levelⅤ.

关 键 词：河道 水质评价 权重 内梅罗污染指数法 

分 类 号：X82[环境科学与工程—环境工程]