2016-2017年四川省部分水厂水源水、出厂水中蓝氏贾第鞭毛虫和隐孢子虫污染情况

The Pollution of Giardia and Cryptosporidium in Source Water and Supply Water in Some Water Plant of Sichuan During 2016-2017

目的了解四川省部分地区集中式供水水厂水源水和出厂水中蓝氏贾第鞭毛虫与隐孢子虫(简称"两虫")的污染情况。方法采用《生活饮用水标准检验方法微生物指标》(GB/T 5750-2006)中Filta-Max Xprss方法对水样进行检测。结果 2016-2017年共32份样本,其中水源水16份,出厂水16份。水源水贾第鞭毛虫卵囊检出率为56. 25%,隐孢子虫卵囊检出率为56. 25%,出厂水贾第鞭毛虫检出率为6. 25%,隐孢子虫检出率为6. 25%。结论本次调查结果显示,水源水中贾第鞭毛虫和隐孢子虫检出率较高,尤其以金沙江和沱江作为水源,连续2年均检出。应进一步加强水源水的防护,减少污染物不合理排放,采取措施治理江河污染。

Objective To investigate the pollution of Giardia and Cryptosporidium in source water and supply water in some water plant of Sichuan Province. Methods Filta-Max Xprss method in the Standard Method for Detecting Living Drinking Water-Microbiological parameters was used. Results A total of 32 samples were taken from 2016 to 2017,of which 16 were source water and 16 were supply water. The positive rate of Giardia and Cryptosporidium in source water was 56. 25% and 56. 25%,the positive rate of Giardia and Cryptosporidium in supply water was 6. 25% and 6. 25% respectively. Conclusion The results show that the positive rate of Cryptosporidium and Giardia contamination in source water is highhad the high in two consecutive years,especially in Jinshajiang River and Tuojiang River. Water source protection should be strengthened,and the government should reduce the emission of pollutants and take measures to control river pollution.