深圳市饮用水污水中隐孢子虫和贾第鞭毛虫的调查  

Investigation on the Pollution of Cryptosporidiumparvum and Giardia lamblia Stiles in Drinking Water and Wastewater in Shenzhen

作　　者：余淑苑 张志诚 叶宝英 王秀英 高汉文[2] 余贵英[3] 蔡承铿[3] 钟赛贤[3] 

机构地区：[1]深圳市疾病预防与控制中心环境卫生科,广东深圳518020 [2]深圳市卫生监督所,广东深圳518020 [3]中山大学,广东广州510080

出　　处：《环境与健康杂志》2003年第3期156-157,共2页Journal of Environment and Health

基　　金：深圳市卫生科技计划项目[2000(04074)];广东省医学科研基金资助项目[2000(626)]

摘　　要：目的调查深圳市水系贾第鞭毛虫和隐孢子虫污染情况,从而为制订我国饮用水原虫卫生标准提供依据。方法采集深圳市3家自来水厂的原水、出厂水以及3家污水处理厂处理后的排出污水,通过对病原虫的抽滤,淘洗,磁分离,染色鉴定,检测其贾第鞭毛虫囊和隐孢子虫卵囊含量。结果深圳市饮用水源及出厂水均未检出贾第鞭毛虫和隐孢子虫,3家污水处理厂中有2家在处理后的污水中检出贾第鞭毛虫和隐孢子虫。结论目前深圳市供水未发现贾第鞭毛虫和隐孢子虫污染,但污水处理厂处理后的水仍可检出致病原虫,表明存在对地面水污染的危险性。Objective To investigate the pollution of parasitic protozoa in drinking water and wastewater in Shenzhen in or-der to present evidence to establish the national hygienic standard for parasitic protozoa in drinking water.Methods Water samples of resource water,fin ished wa ter from3water plants,and post-treated wastewater samples from3wastewater treatment plants in Shenzhen city were collected.Para sitic pro tozoa Giardia lamblia Stiles and Cryptosporidiumparvum were detected by following steps:filtering,washing,magnetic isolation and staining.Results Giardia lamblia Stiles and Cryptosporidiumparvum were not found in samples from raw water and finished water,while they were found in post-treated wastewater samples from2wastewater treatment plants.Conclusion The results indicated that the prob lem of Giardia lamblia Stiles and Cryptosporidi -umparvum pollu tion in the water supplying systems didnt exist at present,but Giardia lamblia Stiles and Cryptosporidi umparvum in the post-treated wastewater were the potential pollution source to surface water.

关 键 词：饮用水 污水 贾第鞭毛虫 隐孢子虫 

分 类 号：R123[医药卫生—环境卫生学]