江苏省生活饮用水中贾第鞭毛虫和隐孢子虫污染情况调查

发布时间：2018-10-11 11:55

【摘要】：目的了解江苏省生活饮用水中贾第鞭毛虫和隐孢子虫的污染状况,为饮用水水质卫生、安全供水提供科学依据。方法选取江苏省13个设区市的28家水厂,分别采集水源水、自来水厂出厂水、管网末梢水样本(其中水源水采集10 L,出厂水和末梢水各100 L),并进行抽滤、淘洗、离心浓缩、免疫磁分离、荧光染色镜检的处理,检测贾第鞭毛虫包囊及隐孢子虫卵囊的含量。结果累计采集江苏省13个设区市的水样84份,包括水源水、水厂出厂水、管网末梢水各28份。其中,水厂出厂水和管网末梢水中均未检出贾第鞭毛虫包囊和隐孢子虫卵囊,但在盐城(盐龙湖)、连云港(蔷薇河)、常州(钱资湖)水源水中检出贾第鞭毛虫包囊,阳性率为10.71%(3/28),密度均为1个/10 L;在南京(长江)、镇江(长江)、扬州(京杭大运河)的水源水中检出隐孢子虫卵囊,阳性率为10.71%(3/28),密度均为1个/10 L。结论江苏省部分地区水源水中可检出贾地鞭毛虫和隐孢子虫,存在一定的安全用水隐患,须进一步加强水源卫生监管,加强饮用水的监测,保证居民的饮水安全。
[Abstract]:Objective to investigate the contamination of Giardia lamblia and Cryptosporidium in drinking water in Jiangsu Province, and to provide scientific basis for drinking water quality hygiene and safe water supply. Methods the water samples were collected from 28 water plants in 13 districts of Jiangsu province. The samples were collected from the source water, the water from the factory and the water from the end of the pipe network (among them, the source water was collected for 10 L, and the water from the factory and the peripheral water were collected for 100 L), each, and then filtered, washed, centrifuged and concentrated). The contents of Giardia lamblia cyst and Cryptosporidium oocyst were detected by immunomagnetic separation and fluorescence staining. Results A total of 84 water samples were collected from 13 cities in Jiangsu Province, including water source water, water factory water, pipe network terminal water 28 samples each. Among them, neither Giardia flagellate cyst nor Cryptosporidium oocysts were detected in the water of the factory and the water of the pipe network, but in the source water of Yancheng (Yilong Lake), Lianyungang (Yanwei River), Changzhou (Qianzihu), the Giardia flagellate cyst was detected. The positive rates of Cryptosporidium oocysts were 10.71% (3 / 28) and 10.71% (3 / 28) and 1 / 10 L respectively in the source water of Nanjing (Yangtze River), Zhenjiang (Yangtze River) and Yangzhou (Beijing-Hangzhou Grand Canal). Conclusion flagellate and Cryptosporidium can be detected in some parts of Jiangsu Province, and there are some hidden dangers in water safety. It is necessary to strengthen water sanitation supervision and drinking water monitoring to ensure the safety of drinking water for residents.
【作者单位】：国家卫生计生委寄生虫病预防与控制技术重点实验室江苏省寄生虫与媒介控制技术重点实验室江苏省血吸虫病防治研究所;江南大学公共卫生研究中心;
【分类号】：R123.1

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