2021-2025年苏州市水资源质量监测断面水质变化特征OA
Analysis of water quality variation characteristics at water resources monitoring sections in Suzhou City from 2021 to 2025
选取2021-2025年苏州市主要河湖水资源质量监测断面的水质数据,主要污染物因子包括溶解氧、高锰酸盐指数、化学需氧量、五日生化需氧量、氨氮和总磷等,采用单项因子评价法和内梅罗指数法分析其水质变化趋势.单项因子评价结果表明,2021-2025年苏州市优Ⅲ类监测断面占比不断上升;使用内梅罗指数法对其分析可知,超标因子的内梅罗指数值在年度和月度尺度上均呈下降趋势.
Selecting water quality data from the water resources quality monitoring sections in Suzhou City from 2021 to 2025,the main pollutant factors are dissolved oxygen,permanganate index,chemical oxygen demand,five-day biochemical oxygen demand,ammonia nitrogen,and total phosphorus.The single factor evaluation method and Nemerow index method were used to analyze the trend of water quality changes.The results of the single factor evaluation indicate that the proportion of excellent Class Ⅲ monitoring sections in Suzhou City continued to increase from 2021 to 2025;according to the analysis using the Nemerow index method,the Nemerow index value of the exceedance factor shows a downward trend on both annual and monthly scales.
张雨凤;俞翔译;谢茂嵘;刘帅;顾林森;俞茜
江苏省水文水资源勘测局苏州分局,江苏 苏州 215000江苏南水科技有限公司,江苏 南京 210000江苏省水文水资源勘测局苏州分局,江苏 苏州 215000江苏省水文水资源勘测局苏州分局,江苏 苏州 215000江苏省水文水资源勘测局苏州分局,江苏 苏州 215000江苏省水文水资源勘测局苏州分局,江苏 苏州 215000
建筑与水利
水质监测污染物因子特征分析苏州市
water quality monitoringpollutant factorscharacteristic analysisSuzhou City
《江苏水利》 2026 (5)
25-28,4
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