摘要
目的分析2008年-2013年河南省农村饮用水中铁、锰含量变化趋势,提高农村饮用水水质,为本省农村饮水安全工程建设及管理提供科学依据。方法依据GB 5749-2006《生活饮用水卫生标准》对2008年-2013年河南省农村饮用水中铁、锰的监测结果进行分析和评价。结果 2008年-2013年共检测水样16 110份,其中铁、锰合格水样分别为15 629份、15 724份,铁、锰合格率分别为97.01%、97.60%,6年间铁、锰合格率均持续提高,其变化差异有统计学意义(χ2值为51.2、62.37,Ρ<0.05)。6年间水样中铁、锰含量变化范围不大,铁、锰检出率差异无统计学意义(χ2值为7.1、3.3,Ρ>0.05)。以地下水为水源的水样中铁、锰的合格率高于以地表水为水源的水样,6年间不同水源的水样中铁、锰合格率差异具有统计学意义。农村部分饮用水中铁、锰呈伴生的现象,一共检出3 300份铁、锰伴生水样。6年的农村饮用水中铁、锰共存的情况,经统计分析,各年间差异无统计学意义(χ2=5.61,Ρ>0.05)。结论 2008年-2013年,本省农村集中式供水工程出厂水中铁、锰指标合格率持续提高。
Objective To analyze the change trend of iron and manganese in drinking water in rural areas of Henan province during 2008- 2013,improve the quality of drinking water in rural areas,and provide scientific basis for the management and safety engineering construction of rural drinking water in our province. Methods The contents of iron and manganese in rural drinking water were analyzed and evaluated in accordance with ＂Sanitary standard for drinking water＂（ GB 5749- 2006）. Results 16 110 samples were detected during 2008- 2013,among which there were 15 629 iron qualifiedsamplesand 15 724 manganese qualified samples,the qualified rate was respectively 97. 01% and 97. 60%. In six years the pass rates of iron and manganese continued to increase,the variety difference was statistically significant（ χ^2= 51. 2,62. 37,P〈0. 05）. And in the six years the content change range of iron and manganese in water was not big,the detection rates difference of iron and manganese were not statistically significant（ χ^2= 7. 1,3. 3,P〉0. 05）. The qualified rate of iron and manganese in groundwater samples were higher than that in surface water samples,there was statistical significance between the qualified rate differences of iron and manganese in different water samples. Iron and manganese of rural drinking water was a companion phenomenon,a total of 3 300 samples of iron,manganese associated samples were detected. In the six years,as for the coexist situation of iron and manganese in rural drinking water,through statistical analysis,the difference of various years was not statistically significant（ χ^2= 5. 61,P〉0. 05）. Conclusion During 2008- 2013,the qualified rate of iron and manganese in rural centralized supplied water in our province has continued to improve.
出处
《中国卫生检验杂志》
CAS
2015年第2期258-259,262,共3页
Chinese Journal of Health Laboratory Technology
关键词
农村饮用水
铁
锰
变化
分析
Rural drinking water
Iron
Manganese
Change
Analysis
