三种指数法在水质评价中的适用性研究  

Research on the Applicability of Three Index Methods in Water Quality Evaluation

作　　者：朱美军[1] 柳冬梅[1] 吉秀芹[1] Zhu Meijun;Liu Dongmei;Ji Xiuqin(Jianghai Polytechnic College,Yangzhou 225101,China)

机构地区：[1]江海职业技术学院,江苏扬州225101

出　　处：《中国资源综合利用》2020年第11期52-55,60,共5页China Resources Comprehensive Utilization

基　　金：江苏省扬州市科技局2019年度软科学研究计划立项项目“扬州市环境风险分析与防控机制研究”(项目编号:YZ2019190)的研究成果之一。

摘　　要：为探讨不同水质指数法在地表水水质评价中的适用性,本文以江淮水域扬州市域范围内9个国考断面为实例,选取溶解氧等7个评价因子,基于2019年度监测数据,采用单因子法、内梅罗法、CCMEWQI法进行水质评价。三种方法评价结果达标率分别为77.8%,88.9%、100%,优良率分别为55.6%,66.7%、77.8%,经x^2检验均无显著性差异。在今后水质评价和管理过程中,建议以单因子法为基础,针对水体水质实际情况,结合三种指数法适用性进行综合评价。In order to explore the applicability of different water quality index methods in surface water quality evaluation,taking 9 national test sections in Yangzhou city of Jianghuai water area as examples,7 evaluation factors,such as dissolved oxygen,were selected in this paper,and based on the monitoring data in 2019,single factor method,Nemero method and CCME WQI method were used for water quality evaluation.The results of the three methods shows the compliance rate was 77.8%,88.9%and 100%respectively,the excellent rate was 55.6%,66.7%and 77.8%respectively,there was no significant difference by x^2 test.In the process of water quality evaluation and management in the future,it is recommended to conduct a comprehensive evaluation based on the single factor method,in view of the actual water quality of the water body,combining the applicability of the three index methods.

关 键 词：水质评价 单因子法 内梅罗法 CCMEWQI法 

分 类 号：X824[环境科学与工程—环境工程]