小清河入海口河段水质评价及主要污染物分析

窦祥洲; 钱秀红; 潘维艳; 徐华; 渠群英; 徐征和

引用本文:	窦祥洲,钱秀红,潘维艳,等.小清河入海口河段水质评价及主要污染物分析[J].灌溉排水学报,0,():-.
	Dou Xiangzhou,Qian Xiuhong,Pan Weiyan,et al.小清河入海口河段水质评价及主要污染物分析[J].灌溉排水学报,0,():-.

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小清河入海口河段水质评价及主要污染物分析
窦祥洲¹, 钱秀红², 潘维艳¹, 徐华², 渠群英², 徐征和¹
1.济南大学水利与环境学院;2.山东省海河淮河小清河流域水利管理服务中心

摘要:

摘要：【目的】查明小清河入海口河段各水质监测断面的水质特征以及污染情况，为入海口河段水环境治理提供科学依据。【方法】选择小清河东营石村站至寿光羊角沟站的入海口段为研究河段，基于4处水质监测断面2019—2021年的监测数据，结合3种不同赋权法对传统综合水质标识指数法的权重进行改进，对小清河入海口河段水质进行评价并做进一步对比分析；采用主成分分析法对各断面的主要污染物进行分析，结合研究区域工农业布局探讨主要污染物来源。【结果】评价结果显示2019—2021年小清河入海口河段各断面水质逐年改善，2021年各断面水质等级均降为Ⅳ类；各断面普遍存在的超标污染物为总氮（TN），其中硝酸盐（NO3-）是主要的污染物存在形态，石村站NO3-受到农业面源以及生活污水等点源的混合作用，侯辛庄站NO3-主要来源为生活污水和粪肥污染；气温、日照时间等气象要素也间接影响小清河入海口河段水质。【结论】基于组合集成赋权法改进的综合水质标识指数法适用于小清河入海口感潮河段的水质评价；入海口感潮河段的主要污染物为TN，应重点关注。

关键词: 水质评价;改进的综合水质标识指数法;主要污染物;小清河入海口

DOI：

分类号:X824

基金项目:国家自然科学基金(42007153)；山东省自然科学基金(ZR2020ME253)；小清河防洪综合治理工程科学研究试验项目(XQHFHZL-KY202003)；济南大学科研计划项目(XKY1810)

Water Quality Assessment and Analysis of main pollutants of the Xiaoqing River Estuary

Dou Xiangzhou¹, Qian Xiuhong², Pan Weiyan¹, Xu Hua², Qu Qunying², Xu Zhenghe¹

1.College of Water Conservancy and Environment,University of Jinan,Jinan;2.Shandong Haihe Huaihe Xiaoqing River Basin Water Conservancy Management Service Center,Jinan

Abstract:

Abstract:【Objective】To study the characteristics of water quality and pollution in the Xiaoqing River Estuary, and to provide scientific basis for water environment management in the Estuary.【Method】The water quality of the Xiaoqing River from Shicun to Yangjiaogou was selected as the study river section, the water quality evaluation was conducted based on the water quality monitoring data of 4 water quality sampling sections from 2019 to 2021. The main pollutants of each section were analyzed by the principal component analysis method, and the sources of the main pollutants were discussed with the industrial and agricultural layout of the study area.【Results】The evaluation results show that the water quality of each section of the Xiaoqing River Estuary has been improved from 2019 to 2021, and the water quality level of each section has been reduced to Class IV in 2021; the common pollutant exceeding the standard at each section is total nitrogen(TN), of which nitrate(NO3-) is the main pollutant form, the NO3- at Shicun is affected by the mixed action of non-point and domestic sewage pollution, and the main source of NO3- at Houxinzhuang is sewage and manure pollution; The meteorological elements such as temperature and rainfall also indirectly affect the water quality in the Xiaoqing River Estuary.【Conclusion】The comprehensive water quality identification index combined with combinatorial integration method is suitable for the water quality assessment of the Xiaoqing River Estuary; the main pollutant of the Estuary is TN, which should be paid attention to.

Key words: Water quality evaluation; Improved Comprehensive water quality identification index method; Major pollutants; the Xiaoqing River estuary.