重庆市乡镇饮用水水源地安全评价与控制对策  被引量:6

Safety assessment of drinking water sources in villages and towns of Chongqing and its control countermeasures

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作  者:张大元[1] 刘兰玉[1] 

机构地区:[1]重庆市环境科学研究院,重庆401147

出  处:《水资源保护》2011年第3期38-41,74,共5页Water Resources Protection

摘  要:采用水质单项指数法和综合指数法,分别选取一般污染物和有毒有害污染物,对重庆市851个乡镇饮用水源地的1019个断面水质进行分析。结果表明:一般污染物单项指数范围为0.01~5.93,水质综合指数为0.50~5.93,饮用水水源地水质安全的监测断面占88.7%;有毒有害污染物单项指数范围为0.01~5.51,水质综合指数为0.10~5.51,水质安全的监测断面占98.6%。重庆乡镇饮用水源地水质状况总体较好,水质安全的监测断面占86.8%,不达标项目有高锰酸盐指数、生化需氧量、氨氮和石油类。在分析乡镇饮用水水源地存在问题的基础上,提出了进一步改善乡镇饮用水水源地水质、确保饮水安全的措施和对策。Employing the water single quality index method and the synthetic quality index method,and selecting common pollutants and toxic pollutants as the targets,the water quality of 851 drinking water sources of 1019 sections in villages and towns of Chongqing were analyzed.The results showed that the range of the single quality index of common pollutants was from 0.01 to 5.93,the synthetic quality index ranged from 0.50 to 5.93,and the percentage of the safety section of water quality was 88.7%.The range of the single quality index of toxic pollutants was from 0.01 to 5.51,the synthetic quality index ranged from 0.10 to 5.51,and the percentage of the safety section of water quality was 98.6%.The water quality of drinking water sources in villages and towns of Chongqing was general good,and the percentage of the safety section of water quality was 86.8%.There were four indexes,CODMn,BOD5,NH4+-N and oil exceeding the standard.Meanwhile,the measures and countermeasures to improve the water quality of drinking water sources and to ensure the safety of drinking water in villages and towns were proposed.

关 键 词:饮用水 水源地 安全评价 乡镇 水质 重庆市 

分 类 号:X824[环境科学与工程—环境工程]

 

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