牧区生活饮用水贾第鞭毛虫和隐孢子虫的调查

发布时间：2019-03-01 17:24

【摘要】：目的了解牧区生活饮用水贾第鞭毛虫和隐孢子虫的污染状况。方法于2014年6—7月,采集随机抽取的赤峰市翁牛特旗8所幼儿园和18户家庭的生活饮用水水样以及辖区内的2条河流和1个水库的环境水样,检测贾第鞭毛虫、隐孢子虫、浑浊度、色度、p H值、总大肠菌群和耐热大肠菌群。结果幼儿园水样中贾第鞭毛虫的检出率为62.5%,均未超标;隐孢子虫的检出率为62.5%,超标率为12.5%。家庭水样中贾第鞭毛虫的检出率为50%,均未超标;隐孢子虫的检出率为27.8%,均未超标。26份饮用水样中浑浊度、色度和总大肠菌群的超标率分别为23.08%,26.92%和19.23%,耐热大肠菌群无超标。3份环境水样均检出贾第鞭毛虫、隐孢子虫和总大肠菌群。水中贾第鞭毛虫、总大肠菌群均与隐孢子虫呈显著正相关(rs分别为0.682、0.495,均P0.01);水中贾第鞭毛虫、隐孢子虫均与耐热大肠菌呈显著正相关(rs分别为0.441、0.463,均P0.05)。结论本次调查牧区的生活饮用水和环境水体均存在原虫污染,可能与粪便污染有关。
[Abstract]:Objective to investigate the contamination of Giardia and Cryptosporidium in drinking water in pastoral areas. Methods from June to July, 2014, samples of drinking water samples from 8 kindergartens and 18 families in Wengniute Banner, Chifeng City, and environmental water samples from two rivers and one reservoir in the area were collected to detect Giardia giardia and Cryptosporidium. Turbidity, chromaticity, pH value, total coliform group and heat resistant coliform group. Results the detection rate of Giardia giardia, Cryptosporidium and Cryptosporidium were 62.5%, 12.5% and 62.5%, respectively. The detection rate of Giardia giardia in household water samples was 50%, which did not exceed the standard. The detection rate of Cryptosporidium was 27.8%, which did not exceed the standard. The turbidity, chromaticity and total coliform of 26 drinking water samples were 23.08%, 26.92% and 19.23%, respectively, and the detection rates of Cryptosporidium were 27.8%, 26.92% and 19.23% respectively. Giardia giardia Cryptosporidium and total coliform were detected in all 3 environmental water samples. There was a significant positive correlation between the total coliform group and Cryptosporidium in the water of Giardia giardia (rs = 0.682, 0.495, P 0.01). In water, both Giardia and Cryptosporidium were positively correlated with heat-resistant coliform (rs = 0.441, 0.463, P 0.05). Conclusion there is protozoan pollution in drinking water and environmental water in pastoral areas, which may be related to fecal pollution.
【作者单位】：中国疾病预防控制中心农村改水技术指导中心;赤峰市疾病预防控制中心;翁牛特旗疾病预防控制中心;
【基金】：国家卫生和计划生育委员会公益性行业科研专项(201302004)
【分类号】：R123.1

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