2015年陕西省三大区域农村集中式供水水质监测结果分析

发布时间：2018-05-24 22:03

本文选题：农村 + 水质　；参考：《现代预防医学》2017年19期

【摘要】：目的掌握陕西省不同区域农村集中式供水水质卫生状况,为进一步科学、精准的开展农村改水提供科学依据。方法于2015年3月至10月,对陕西省全部涉农区县的农村集中式供水工程开展卫生学调查和水质分析。数据按照关中地区、秦巴山区和陕北地区分别统计、分析与评价。结果关中地区水样达标率(64.89%)显著高于秦巴山区(33.45%)与陕北地区(33.45%)(P0.05);关中地区、秦巴山区和陕北地区水源类型分别以深井水、溪水和浅井水为主;三个区域拥有消毒措施的供水工程占比均低于35.00%;关中地区、秦巴山区和陕北地区总大肠菌群的达标率分别为85.76%,36.46%和59.51%;菌落总数的达标率分别为94.09%,87.56%和74.28%。关中地区氟化物和铬(六价)的达标率分别为89.06%和97.70%;陕北地区氟化物、铬(六价)和硝酸盐氮的达标率分别为88.15%,88.15%和92.82%。结论微生物污染是影响陕西省农村集中式供水工程水质的主要因素。关中地区、陕北地区氟化物和铬(六价)等毒理学指标超标现象普遍。
[Abstract]:Objective to understand the hygienic situation of centralized water supply in different areas of Shaanxi Province and provide scientific basis for further scientific and accurate development of rural water supply. Methods from March to October, 2015, hygienic investigation and water quality analysis were carried out on rural centralized water supply projects in all agricultural districts and counties of Shaanxi Province. The data were statistically analyzed and evaluated according to Guanzhong region, Qinba Mountain area and Northern Shaanxi region. Results the water samples of Guanzhong area were significantly higher than that of Qinba Mountain area (33.45%) and North Shaanxi area (P 0.05%), and the main water sources in Guanzhong area, Qinba Mountain area and Northern Shaanxi region were deep well water, stream water and shallow well water, respectively. The percentage of total coliform bacteria in Guanzhong area, Qinba Mountain area and northern Shaanxi area were 85.766.46% and 59.51%, respectively, and the total bacterial colony reached the standard rate of 94.09% 87.56% and 74.28%, respectively, in the three regions with disinfection measures less than 35.000.The percentage of total coliform bacteria in Guanzhong area, Qinba Mountain area and northern Shaanxi area was 86.46% and 59.51%, respectively. The reaching rates of fluoride and chromium (hexavalent) in Guanzhong area were 89.06% and 97.70%, respectively, and those of fluoride, chromium (hexavalent) and nitrate nitrogen in northern Shaanxi were 88.15% and 92.82%, respectively. Conclusion microbial pollution is the main factor affecting the water quality of rural centralized water supply project in Shaanxi Province. Fluoride and chromium (hexavalent) and other toxicological indexes are common in Guanzhong and Northern Shaanxi regions.
【作者单位】：陕西省疾病预防控制中心;
【基金】：基金项目:陕西省公共卫生检测监测服务平台(2016FWPT-12)
【分类号】：R123.1

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