基于改进主成分分析法的水环境中重金属污染流域水质生态评价方法研究  

Research on Ecological Evaluation Method of Water Quality in HeavyMetal Polluted Watersheds Based on Improved Principal Component Analysis

作　　者：徐剑乔 Xu Jianqiao(China Railway Fourth Survey and Design Institute Group Co.,Ltd.,Wuhan 430063,China)

机构地区：[1]中铁第四勘察设计院集团有限公司,湖北武汉430063

出　　处：《环境科学与管理》2024年第5期191-194,共4页Environmental Science and Management

摘　　要：为了准确掌握水环境中的重金属污染情况,提高水质生态防治效果,提出了基于改进主成分分析法的水环境中重金属污染流域水质生态评价方法研究。选取研究污染流域水质区域,收集4个区域地表水,测定金属元素含量,通过四类分析与评价法,实现对水环境中重金属污染状况及潜在危害的生态评价,得出评价的B区域和C区域水质综合重金属污染较高,铁元素在四个区域均在第一主成分,是污染程度最高的,整体生态评价为及格。评价结果表明所提方法可以对水环境中重金属污染状况进行精确的评价,辅助保护人民身体健康与生态环境。In order to accurately grasp the situation of heavy metal pollution in the water environment and improve the effect of ecological prevention and control of water quality,an ecological evaluation method of water quality in heavy metal polluted river basins in the water environment based on improved principal component analysis was proposed.The study selects the water quality area of the polluted river basin and collects the surface water of four areas to determine the content of metal elements.Through four kinds of analysis and evaluation methods,the study evaluates the the pollution status and potential harm of heavy metals in the water environment.It is concluded that the comprehensive heavy metal pollution of water quality in area B and C is relatively high.The iron element is in the first principal component in all four areas,which is the highest degree of pollution,and the overall ecological evaluation is qualified.The evaluation results show that the proposed method can accurately evaluate the pollution of heavy metals in the water environment,and help protect people s health and ecological environment.

关 键 词：改进主成分分析法 潜在生态风险 水生态环境 重金属污染 水质生态评价 

分 类 号：X824[环境科学与工程—环境工程]