【摘要】 目的通过对中山市城区和各镇区的生活饮用水水源水质卫生质量进行分析,了解并掌握中山市生活饮用水水源水质的卫生状况,为改善生活饮用水水质提供科学依据。方法采用定期抽样的方法,每季度对中山市城区和各镇区的生活饮用水水源水进行采样分析,分析的项目主要包括毒理指标(砷、镉、六价格、铅、汞、硒、氰化物、氟化物、硝酸盐、三氯甲烷、四氯化碳、三氯乙烯、四氯乙烯、马拉硫磷、对硫磷、甲基对硫磷、乐果、敌敌畏、苯、甲苯、二甲苯、乙苯、苯乙烯等)和一般化学指标(pH值、铁、锰、锌、铜、氯化物、硫酸盐、耗氧量、挥发酚类、阴离子合成洗涤剂等)。检测结果按《地表水环境质量标准》(GB3838-2002)中的Ⅱ类地表水(主要适用于生活饮用水地表水源地二级保护区)标准限值进行评价。结果分析生活饮用水水源水质共120份,所检项目全部达到国家《地表水环境质量标准》(GB3838-2002)中的Ⅱ类地表水标准的共73份,达标率为60.8%。未达标项目为氨氮、铁、锰、汞等,其余参与评价的检测项目均符合质量标准。结论中山市城区和各镇区的生活饮用水水源水超标指标集中在几个项目上,应引起相关部门的足够重视。更多还原

【Abstract】 [Objective]To analyze the hygienic quality of drinking water source in all districts of Zhongshan City so as to understand the hygienic status,and provide scientific basis for improving the quality of drinking water.[Methods]Periodic sampling was adopted to analyze the drinking water source every 3 months,the analysis included toxicological indicators(arsenic,cadmium,hexavalent,chromium,lead,mercury,selenium,cyanide,fluoride,nitrate,trichlormethane,carbon tetrachloride,chlorylene,tetrachloroethylene,Mmalathion,parathion,methyl parathion,dimethoate,dichlorvos,benzene,toluene,xylene,ethyl benzene,styrene,ect)and general chemical indicators(PH value,iron,manganese,zinc,copper,chloride,sulfate,oxygen consumption,volatile phenol,anion detergents,ect).The detection results were evaluated according to standard limit of class Ⅱ surface water(suitable for protection zone II of surface drinking water source)of "Surface Water Environmental Quality Standard"(GB 3838-2002).[Results]of 120 samples of drinking water source,73 samples’ all testing items met the national standards,the eligible rate was 60.8%.The items of ammonia nitrogen,iron,manganese,mercury,etc did not meet the standards,the rest were all qualified.[Conclusion] The unqualified drinking water concentrates on several test items in Zhongshan City,which should attract more attention of relevant departments.更多还原