基于2种统计分析模型解析网状河流的长期污染趋势和污染源贡献——以椒江为例  

In-depth understanding of long-term pollution trends and pollution source contributions of reticulated rivers based on multiple statistical analysis models——Taking Jiaojiang River as an example

作　　者：杨河振 孙思宇 李思敏 魏东洋 石宇竹 刘文辉 李国文[2] 刘操 YANG Hezhen;SUN Siyu;LI Simin;WEI Dongyang;SHI Yuzhu;LIU Wenhui;LI Guowen;LIU Cao(School of Energy and Environmental Engineering,Hebei Engineering University,Handan 056009,China;Chinese Academy of Environmental Sciences,Beijing 100085,China;Beijing North Canal Management Office,Beijing 101100,China;Environmental development center of the Ministry of ecology and environment,Beijing 100101,China;College of Environment,Liaoning University,Shenyang 110036,China;Taizhou Jiao jiang Ecological Zone Construction Affairs Center,Taizhou 318000,China)

机构地区：[1]河北工程大学能源与环境工程学院,邯郸056009 [2]中国环境科学研究院,北京100085 [3]北京市北运河管理处,北京101100 [4]生态环境部环境发展中心,北京100101 [5]辽宁大学环境学院,沈阳110036 [6]台州市椒江生态区建设事务中心,台州318000

出　　处：《环境保护科学》2023年第6期68-76,共9页Environmental Protection Science

基　　金：国家重点研发计划项目(2021YFC3201500)。

摘　　要：文章以椒江为例,对网状河流水质和污染源进行了研究。为了识别椒江水质的主要参数和潜在污染源,运用PCA和相关性分析筛选出CODMn、DO、NH3-N、TP和FL共5个显著的水质指标来代表椒江2016—2020年间的水质数据集,并运用WQI评价水质。运用APCS-MLR模型和PMF模型,对污染最严重的椒南流域点位的水质参数进行了分析,以进一步探索4个潜在的污染源及其贡献。APCS-MLR模型溯源结果显示:生活污水(28.83%);雨洪径流(20.42%);工业废水(16.49%);农业源(8.98%);未识别源(25.27%)。PMF模型溯源结果显示:生活污水(39.24%);雨洪径流(26.49%);工业废水(19.22%);农业源(15.04%)。2种模型的源解析结果基本一致,准确性较高。该结果可以为椒江制定水质管理及污染控制对策提供科学依据,同时,为网状河流的治理提供技术理论支撑。Taking Jiaojiang River as an example,the water quality and pollution sources of Jiaojiang River were studied.To identify the main parameters and potential pollution sources of Jiaojiang River,five significant water quality indexes,CODMn,DO,NH3-N,TP and FL,were selected by PCA and correlation analysis to represent the water quality data set from 2016 to 2020.And the water quality was evaluated by WQI.Because Jiaonan watershed was the most polluted area,the water quality parameters of several points in Jiaonan watershed were analyzed to further explore the potential pollution sources and their contributions.Using APCSMLR model and PMF model,four potential pollution sources were identified,and the contribution of each pollution source was calculated.The traceability results of APCS-MLR model were as follows:domestic sewage(28.83%);stormwater runoff(20.42%);industrial wastewater(16.49%);agricultural non-point source(8.98%).In addition,unidentified sources accounted for 25.27%.The traceability results of PMF model were as follows:domestic sewage(39.24%),stormwater runoff(26.49%),industrial wastewater(19.22%)and agricultural non-point source(15.04%).The source analysis results of the two models were the same,which confirmed the accuracy of the traceability results.The research results can provide a scientific basis for the formulation of water quality management and pollution control countermeasures of Jiaojiang,and provide a theoretical and technical support for the treatment of reticulated rivers.

关 键 词：污水源解析 网状河流 APCS-MLR PMF 椒江 

分 类 号：X52[环境科学与工程—环境工程]