摘要
为摸清重庆市乡镇饮用水源污染现状,采用综合污染指数评价法对重庆市18个镇饮用水源地的水质进行了调查与分析评价。结果表明：水库型饮用水源地主要污染物为总氮和粪大肠菌群,其中,总氮含量为0.438-2.368 mg/L,超过水体富营养化发生的限制值。主要受农业面源污染和水产养殖污染影响;河流型饮用水源地受多种污染源影响。总体上,水库型饮用水源地水质优于河流型,并提出了防治对策。
The water quality of 18 drinking water sources in villages and towns was analyzed and evaluated by comprehensive pollution index method to know the pollution situation of drinking water sources in Chongqing.The results showed that total nitrogen and fecal coliform bacteria population were main contaminants in reservoirs,and its total nitrogen content was 0.438～2.368mg/L which was beyond the lowest limited value of water eutrophication.The water quality in reservoirs was mainly polluted by overuse of fertilizers and pesticides,and aquatic culture.The water quality in rivers was polluted by multiple contaminants.The water quality in reservoirs was better than that in rivers overall.The countermeasures to control contamination of drinking water sources were put forward at the same time.
出处
《贵州农业科学》
CAS
北大核心
2010年第5期233-235,共3页
Guizhou Agricultural Sciences
基金
重庆市建委资助项目"重庆市新农村建设中饮用水安全评价及对策研究"[城科字2007第(54)号]
关键词
饮用水源
水质污染
污染防治
重庆市
drinking water source
water contamination
pollution prevention control
Chongqing
