基于因子分析与水质标识指数法的某河流水质评价研究  

Evaluation of Water Quality based on Factor Analysis and Water Quality Identification Index

作　　者：刘丽萍 尚胜美 LIU Liping;SHANG Shengmei(School of Municipal and Ecological Engineering,Shanghai Urban Construction Vocational College,Shanghai 201415,China)

机构地区：[1]上海城建职业学院市政与生态工程学院,上海201415

出　　处：《盐科学与化工》2024年第8期11-14,共4页Journal of Salt Science and Chemical Industry

摘　　要：为判断苏南运河无锡段的水环境污染状况,于2018~2020年沿程布置10个监测断面,采用单因子标识指数法、综合水质标识指数法评价其水质情况,通过因子分析及冗余分析技术对污染源进行解析。结果表明:所有水质因子中NH_(3)-N污染最严重,高锰酸钾指数能满足水功能区划要求;3 a来NH_(3)-N及COD_(Cr)达标率逐年上升,TP达标率逐年下降;根据污染源解析,研究区主要污染物为NH_(3)-N、COD_(Cr)及TP。文章对苏南运河无锡段水环境污染程度进行了详细的分析和对比,研究结论可为流域管理部门对水环境综合治理提供理论参考。In order to judge the pollution of water environment of southern Jiangsu Canal of Wuxi section,10 monitoring sections were arranged in 2018 to 2020,the water quality was evalu⁃ated by the single factor identification index method and the comprehensive water quality index method,the pollution sources were analyzed by factor analysis and redundant analysis techniques.The results showed:NH_(3)-N pollution is the most serious of all water quality factors,CODMn index can meet the requirements of water function zoning;The compliance rates of NH_(3)-N and COD_(Cr) have increased year by year,the compliance rates of TP has decreased;According to the analysis of pollution sources,the main pollutants are NH_(3)-N,COD_(Cr) and TP.The research conclusions can provide theoretical reference for comprehensive management of water environment.

关 键 词：苏南运河无锡段 水质因子 评价 

分 类 号：X824[环境科学与工程—环境工程]