镇江市乡镇集中式饮用水水源地水质现状及保护对策  

Water Quality Status and Protection Countermeasures Centralized Drinking Water Source in Towns of Zhenjiang City

作　　者：罗刚 薛风云 曹华 

机构地区：[1]镇江市环境监测中心站,江苏镇江212000

出　　处：《污染防治技术》2012年第6期43-47,55,共6页Pollution Control Technology

摘　　要：根据2011年1月-2012年6月镇江市13个在用的乡镇集中式饮用水源地的监测结果,对不同年度不同水期的水质进行分析,初步讨论了这一时期水质的变化情况和趋势,水体中的主要污染物的组成以及它们对总污染负荷的贡献程度。结果表明,这一时期全市的乡镇饮用水水质情况良好,湖库型饮用水源地水质普遍好于河流型,水质总体污染程度有减轻的趋势。枯水期的水质情况最差,污染分担率为33.76%,丰水期和平水期水质相对较好。2012年13个饮用水源地水体中主要污染物为氮磷类和有机类,二者污染分担率之和为80.3%,而无机类、金属类和细菌类污染比重很小。对于湖库型水源地的保护,重点在于减少周边人为活动;而对于河流型水源地的保护,应着重于城市内河的整治和污水管网的完善,此外,沿河公路预防突发性环境污染事故也是关键。According to the monitoring results of centralized of drinking water source in 13 towns of zhenjiang city from 2011 January to 2012 July and the water quality analysis in different years, the water quality change situation and trend, the main pollu- tants and thier contribution to water pollntion were discussed. The results showed that, during this period, the city＇ s rural drinking water quality in good condition, the water quality of lake and reservoir were generally better than that in river. In dry season, water quality is the worst, pollution share rate of 33.76%. In abundant water period, the water quality is relatively good. The major pol- lutants of 13 drinking water sources in 2013 were nitrogen, phosphorus and organic pollution, and their share rate readred 80.3% , while the inorganic, metallic and bacterial contamination proportion is very small. The lake and reservoir water source protection should focus on reducing the surrounding human activity; the river water source protection should focus on city river harnessing and sewage pipe network imprwement. In addition, the highway along river in the prevention of sudden environmental pollution accident would be the key.

关 键 词：乡镇饮用水 污染分担率 污染指数 环境保护 

分 类 号：X322[环境科学与工程—环境工程]