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目的通过调查广州市市政自来水的水源水中的基本污染物质和霍乱弧菌存在的情况,为监督管理等提供科学依据。方法对广州市2007-2009年市政自来水水厂的水源水的检测结果进行整理分析,按GB3838-2002《地表水环境质量标准》Ⅲ类进行分析评价。结果广州市市政水厂水源水监测项目中,霍乱弧菌、pH值和阴离子表面活性剂的合格率为100%,耗氧量、氨氮、溶解氧和耐热大肠菌群合格率分别为92.11%、27.83%、8.57%和7.83%。枯水期水源水氨氮的合格率明显低于丰水期,SD水道水源水监测项目中的溶解氧、氨氮和耐热大肠菌群合格率明显高于其余河道水源水。结论广州市市政自来水的SD水道水源水、LX河水源水、ZJ航道水源水和DJ北干流水源水霍乱弧菌方面目前还具有安全的保证,水源水可能受到有机物、粪便等的污染,应重点加强水源防护。
Objective To investigate the existence of basic pollutants and Vibrio cholerae in the tap water of Guangzhou municipal tap water and provide a scientific basis for supervision and management. Methods The test results of source water of municipal tap water plant in Guangzhou City from 2007 to 2009 were analyzed and evaluated according to Class Ⅲ of GB3838-2002 “Surface Water Environmental Quality Standard”. Results The qualified rate of Vibrio cholerae, pH value and anionic surfactant was 100%, and the pass rate of oxygen consumption, ammonia nitrogen, dissolved oxygen and heat-resistant coliform bacteria was 92.11% , 27.83%, 8.57% and 7.83% respectively. The passing rate of ammonia nitrogen in water source water of dry season was obviously lower than that of wet season. The passing rate of dissolved oxygen, ammonia nitrogen and heat-resistant coliform bacteria in SD water source water monitoring project was obviously higher than that of other river water sources. Conclusions There is still a safe guarantee for water supply of SD waterway, LX river source water, ZJ channel water source and water source water cholerae of DJ mainline in Guangzhou municipal tap water. Source water may be polluted by organic matter and feces, etc., and should be emphatically Strengthen water protection.