基于单因子评价法和综合污染指数法解析龙凤河水质状况  

Analysis of water quality of Longfeng River based on single factor evaluation method and comprehensive pollution index method

作　　者：赵恰 赵明杰 郭清 汪佳慧 刘晓晓 和娴娴 Zhao Qia;Zhao Mingjie;Guo Qing;Wang Jiahui;Liu Xiaoxiao;He Xianxian(Hebei Key Laboratory of River Water Quality Purification and Ecological Restoration,Qinhuangdao Tianda Environmental Protection Research Institute Co.,Ltd.,Qinhuangdao 066000,China;Hebei Engineering Research Center of River Water Treatment and Ecological Restoration,Qinhuangdao 066000,China)

机构地区：[1]秦皇岛天大环保研究院有限公司,河北省河道水质净化及生态修复重点实验室,河北秦皇岛066000 [2]河道水处理和生态修复河北省工程研究中心,河北秦皇岛066000

出　　处：《江苏科技信息》2023年第6期72-75,共4页Jiangsu Science and Technology Information

摘　　要：以2019—2020年龙凤河5个监测断面的监测数据为基础,文章选取5个水质指标进行因子特征分析,并采用单因子评价法和综合污染指数法对龙凤河水质进行综合评价。单因子评价法结果表明,龙凤河水质类别为Ⅴ类,主要限制因子为化学需氧量(COD)和氨氮(NH3-N);综合污染指数法结果表明,龙凤河水质为中污染,丰水期水质优于平水期和枯水期,主要污染因子为COD、NH3-N和总磷(TP)。Based on the monitoring data of five monitoring sections of Longfeng River from 2019 to 2020, five water quality indexes were selected for factor characteristic analysis, and single factor evaluation method and comprehensive pollution index method were applied to evaluate the water quality of Longfeng River. The single factor evaluation method indicated that the water quality of Longfeng River was class Ⅴ. The first restrictive factors of water quality were chemical oxygen demand(COD) and ammonia nitrogen(NH3-N). The results of comprehensive pollution index method showed that the water quality was in a moderate pollution condition, with better water quality in high water period than in other two periods.COD, NH3-N and total phosphorus(TP) were the main pollution factors.

关 键 词：龙凤河 单因子评价法 综合污染指数法 污染分担率 水质评价 

分 类 号：X824[环境科学与工程—环境工程]