摘要
目的分析2014-2019年内蒙古自治区饮用水氨氮监测数据,为生活饮用水水质安全监测工作提供科学依据。方法按照《生活饮用水卫生标准》(GB5749-2022)进行评价,分析不同年份、不同采样类型、不同水期和不同水样类型饮用水中的氨氮达标率。结果2014-2019年内蒙古自治区饮用水中氨氮达标率为97.08%,达标率的波动范围为95.99%~98.38%,呈逐年上升趋势(X²=94.511,P<0.05)。2014-2019年城市水中的氨氮达标率高于农村水,差异有统计学意义(x^(2)=86.475,P<0.05),城市水的达标率为98.26%,且呈上升趋势(x^(2)=246.833,P<0.05),农村水的达标率为96.48%,且呈逐年上升趋势(x^(2)=61.295,P<0.05)。丰水期达标率为97.25%,枯水期达标率为96.91%,氨氮达标率差异无统计学意义(x^(2)=3.660,P>0.05),氨氮达标率均有逐年上升趋势。各盟市水质氨氮达标率差异有统计学意义(x^(2)=1095.427,P<0.05),氨氮达标情况不理想的地区为通辽市、兴安盟和鄂尔多斯市。结论2014-2019年内蒙古自治区生活饮用水中氨氮达标率在95.00%以上,且达标率逐年上升,今后需重点强化农村饮水安全工程的建设工作,加强农村饮用水水质监测工作,优化饮用水预处理工艺,以保护水源地环境。
Objective To analyze the monitoring data of ammonia nitrogen in drinking water in Inner Mongolia Autonomous Region from 2014 to 2019,and to provide scientific basis for the safety monitoring of domestic drinking water quality.Methods The qualified rate of ammonia nitrogen in drinking water for different years,sampling types,water periods and types of water samples were analyzed and evaluated according to the Standards for Domestic Drinking Water Quality(GB 5749-2022).Results From 2014 to 2019,the qualified rate of ammonia nitrogen in drinking water in Inner Mongolia Autonomous Region was 97.08%,and the qualified rate fluctuated from 95.99%to 98.38%with an upward trend year by year(x^(2)=94.511,P<0.05).From 2014 to 2019,the qualified rate of ammonia nitrogen in urban water was higher than that in rural water,and the difference was statistically significant(x^(2)=86.475,P<0.05).The qualified rate of urban water was 98.26%with an upward trend(x^(2)=246.833,P<0.05),and the qualified rate of rural water was 96.48%,with an upward trend year by year(x^(2)=61.295,P<0.05).The qualified rate in the high-water period was 97.25%,and the compliance rate in the low-flow period was 96.91%,and the difference between the qualified rates of ammonia nitrogen was not statistically significant(x^(2)=3.660,P>0.05).The qualified rate of ammonia nitrogen increased year by year.The differences in the qualified rates of ammonia nitrogen were statistically significant among all cities(x^(2)=1095.427,P<0.05).The areas with poor ammonia nitrogen reaching the water quality standard were Tongliao,Hinggan League,and Ordos.Conclusion From 2014 to 2019,the qualified rate of ammonia nitrogen in domestic drinking water in Inner Mongolia Autonomous Region is above 95.00%,and the qualified rate is increasing year by year.In the future,it is necessary to focus on strengthening the construction work of rural drinking water safety projects,strengthening the monitoring of rural drinking water quality,and optimizing the pretreatment process of drinking water,in order to protect the environment of water source.
作者
张向楠
高昇
秦钰涵
魏娜娜
范耀春
ZHANG Xiangnan;GAO Sheng;QIN Yuhan;WEI Nana;FAN Yaochun(Inner Mongolia Autonomous Region Comprehensive Center for Disease Control and Prevention,Hohhot,Inner Mongolia Autonomous Region 010000,China;不详)
出处
《医学动物防制》
2024年第2期105-108,112,共5页
Journal of Medical Pest Control
基金
内蒙古自治区自然科学基金项目(2019MS03027)。
关键词
生活饮用水
氨氮
年份
采样类型
水期
合格率
Domestic drinking water
Ammonia nitrogen
Years
Sampling type
Water period
Qualified rate
