2015年-2017年贵港市覃塘区农村饮用水水质监测结果分析

Analysis of the monitoring results of rural drinking water quality in Qintang district,Guigang during 2015-2017

目的了解贵港市覃塘区农村饮用水水质卫生状况,为相关部门加强农村饮水安全工程建设和管理提供科学依据。方法依据GB/T 5750—2006《生活饮用水标准检验方法》、GB 5749—2006《生活饮用水卫生标准》对本市覃塘区2015年-2017年农村饮用水水质卫生状况监测及分析。结果 2015年-2017年共监测水样671份,总合格率为40. 39%;不合格项主要为微生物指标,其次为肉眼可见物、硫酸盐、总硬度等。枯水期水质合格率高于丰水期,差异有统计学意义(χ2=6. 907,P <0. 05)。乡镇水厂水质总合格率最高,为78. 33%,与农村饮水工程、学校自备用水水质总合格率相比差异有统计学意义(χ2值分别为32. 080、43. 350,P <0. 05)。结论贵港市覃塘区农村生活饮用水水质卫生状况不容乐观。建议相关部门加大管理力度,改进防治措施,确保农村生活饮用水安全。

Objective To understand the hygien status of rural drinking water in Qintang District of Guigang,so as to provide scientific basis for the relevant departments for strengthening the construction and management of the rural drinking water safety project. Methods The quality of rural drinking water in this district during 2015-2017 were monitored and analyzed according to Standard Examination Method for Drinking Water（GB/T 5750—2006） and Sanitary Standard for Drinking Water（GB5749—2006）. Results A total of 671 water samples were monitored in 2015-2017 with the qualified rate of 40. 39%; the most frequently unqualified items were microbial indicators,followed by visible substances,sulfate,total hardness,etc. The qualified rate of water quality in the dry season was significantly higher than that in the wet season,and the difference was statistically significant（χ2= 6. 907,P〈0. 05）. The total qualified rate of water quality in the township waterworks was the highest（78. 33%）,and compared with that of the rural drinking water project and school self-produced water,the differences were statistically significant（χ2= 32. 080,χ2= 43. 350,P〈0. 05）. Conclusion The health status of rural drinking water quality is not optimistic in Qintang District,Guigang. The related departments should strengthen management,improve the prevention and control measures to ensure the safety of rural drinking water.