大伙房水库水质时空变化特征与污染原因分析  

Analysis of spatio-temporal variation characteristics and pollution causes of water quality in Dahuofang Reservoir

作　　者：费金岩 FEI Jinyan(Liaoning Fushun Ecological Environment Monitoring Center,Fushun 113006,China)

机构地区：[1]辽宁省抚顺生态环境监测中心,辽宁抚顺113006

出　　处：《黑龙江环境通报》2024年第9期17-20,共4页Heilongjiang Environmental Journal

摘　　要：大伙房水库为辽宁省7个城市近2300万居民提供生活饮用水,水库水质安全意义重大。本文通过2022年大伙房水库水质监测数据,采用单因子评价法、综合营养状态指数法分析了大伙房水库水质现状、水质时空变化特征,并对污染特征与原因进行了分析。结果表明:2022年大伙房水库库区水质有所下降,水质类别超Ⅱ类标准限值,年均值符合Ⅲ类水质标准,超Ⅱ类标准的指标为总磷,参考指标总氮为劣Ⅴ类。大伙房水库污染类型属于营养盐类(氮、磷)污染。对此,提出了应重视水体富营养化问题,加强对入库面源污染的控制等建议。Dahuofang Reservoir provides drinking water for nearly 23 million residents in seven cities in Liaoning Province,and its water quality safety is of great significance.Based on the water quality monitoring data of Dafopung Reservoir in 2022,this paper analyzes the current status of water quality,spatio-temporal variation characteristics,and pollution features and causes using the single-factor evaluation method and the comprehensive nutrition state index method.The results show that the water quality of the reservoir area decreased in 2022,exceeding the Class II standard limit,with an annual average meeting the Class III water quality standard.The indicator exceeding the Class II standard is total phosphorus,and the reference indicator total nitrogen is inferior to Class V.The pollution type of Dafopung Reservoir belongs to nutrient salt(nitrogen,phosphorus)pollution.Therefore,it is proposed to pay attention to the problem of water eutrophication and strengthen the control of non-point source pollution.

关 键 词：水质时空变化 污染原因分析 大伙房水库 

分 类 号：X524[环境科学与工程—环境工程]