摘要
本文以广西北部湾地区防城港市河流型饮用水源地为研究对象,以2011~2017年饮用水源地水质监测结果为数据基础,对防城港市1个河流型集中式饮用水源地枯水期、平水期、丰水期水质进行评价及风险评估。结果表明防城港市河流型饮用水源地水质WPI值均小于50,水质类别以Ⅱ类水、Ⅲ类水为主,满足《地表水环境质量标准》Ⅲ类水质标准,水质健康风险为低风险,水质污染风险等级以低风险为主。采用层次分析法确定各部分风险因子权重,对水源地水质安全风险进行综合评估,结果表明水质安全风险等级以低(Ⅱ)风险为主,水质状况良好,水质安全风险等级有变高的趋势,应当引起重视。
This paper takes urban centralized drinking water source areas in Fangchenggang on as the research objects, and based on the data basis of the water quality monitoring results in drinking water source between 2011 and 2017. It will do the evaluation and risk assessment on the water quality of urban centralized drinking water source areas of one rivers.The results show that the WPI value is less than 50 in the urban centralized drinking water source areas of Beibu Gulf Region, water quality category is dominated by class Ⅱ water and class Ⅲ water, all of them meet Ⅲ third grade water quality <standard of surface water environmental quality >, that low and medium risks is mainly the health risk of drinking water sources, the conclusion indicated that it is low risk of the Grade of water pollution.Also, it will ascertain each part of the risk weighting factor by using hierarchical analysis model and then process a comprehensive assessment over the water quality safety risk of driking water source. Low and medium risk is mainly the risk of drinking water sources. The water quality and safety risk level of the river drinking water sources is mainly low risk, it is good. However, the water quality and safety risk level is increasing.
作者
凌政学
凌玲
Ling Zhengxue;Ling Ling(Guangxi Zhuang Autonomous Region Ecological and Environmental Monitoring Center,Nanning 530028,China)
出处
《广东化工》
CAS
2020年第5期85-88,93,共5页
Guangdong Chemical Industry
基金
西江流域水环境重金属污染机制与调控(广西自然科学基金项目)(2013GXNSFEA053001)。
关键词
广西北部湾
饮用水源地
水质评价
风险评估
Guangxi Bebu Gulf
drinking water source
water quality evaluat
risk assessment
