论文部分内容阅读
目的了解甘肃省西和县农村小学生活饮用水卫生状况,为进一步实施安全饮水工程确保学校饮用水卫生安全提供科学依据。方法 2014年和2016年甘肃省疾病预防控制中心及西和县疾病预防控制中心两次对西和县农村小学和教学点生活饮用水随机采样并现场调查,采样并判定按照《生活饮用水标准检验方法》GB/T 5750-2006及《生活饮用水卫生标准》GB 5749-2006的要求进行,运用Spss 16统计学软件分析数据。结果 2014年采水样36份、合格9份、合格率25%,2016年采水样33份、合格8份、合格率24%,不同年度差异无统计学意义(χ~2=0.01,P>0.05);感官指标合格率分别为67%和70%(χ~2=0.07)、一般化学指标合格率为64%和73%(χ~2=0.62)、毒理学指标合格率为83%和88%(χ~2=0.04)、微生物学指标合格率为25%和33%(χ~2=0.58),以上指标两年间差异均无统计学意义(P>0.05);江河水合格率均为100%,浅井水合格率分别为18%和11%,深井水合格率为33%和67%,泉水合格率为29%和19%,水库水、窖水和沟塘水合格率均为0,不同水源类型差异无统计学意义(Fisher’s检验,P>0.05)。结论甘肃省西和县农村小学生活饮用水水质受到污染,对广大师生的身体健康有潜在威胁,水质卫生状况亟待改善,相关部门应加大对供水设施和水消毒处理设施的投入,确保生活饮用水合格。
Objective To understand the sanitary status of drinking water in rural primary schools in Xixian County of Gansu Province and to provide a scientific basis for further implementation of safe drinking water projects to ensure the hygiene and safety of school drinking water. Methods Both Gansu CDC and Xihe CDC in 2014 and 2016 randomly sampled and investigated on-site investigation of drinking water in rural primary schools and teaching sites in Xijian County. Sampling and determination were conducted in accordance with the Standards for Drinking Water Quality Inspection Methods “GB / T 5750-2006 and” drinking water health standards "GB 5749-2006 requirements, using Spss 16 statistical software to analyze the data. Results In 2014, 36 samples were collected, 9 samples were qualified and the pass rate was 25%. In 2016, 33 samples were collected, 8 samples were qualified and the pass rate was 24%. There was no significant difference in different years (χ ~ 2 = 0.01, P > 0.05). The passing rate of sensory index was 67% and 70% respectively (χ ~ 2 = 0.07). The passing rate of general chemical index was 64% and 73% (χ ~ 2 = 0.62) And 88% (χ ~ 2 = 0.04) respectively. The passing rate of microbiological indexes was 25% and 33% (χ ~ 2 = 0.58) respectively. There was no significant difference in the above indexes between two years (P> 0.05) The water passing rate of shallow wells was respectively 18% and 11%, the passing rate of deep well water was 33% and 67%, the passing rate of spring water was 29% and 19%, respectively. The pass rates of reservoir water, pit water and ditang water were both 0, no significant difference in different types of water (Fisher’s test, P> 0.05). Conclusion The quality of drinking water in rural primary schools in Xixian County of Gansu Province is polluted, which poses a potential threat to the health of teachers and students. The sanitary status of water quality needs to be improved urgently. Relevant departments should increase investment in water supply facilities and water disinfection treatment facilities to ensure life Drinking water qualified.