2014年南平市部分农村生活饮用水监测分析

The analyzation of drinking water testing in part of the rural areas of Nanping 2014

目的对南平市部分农村生活饮用水水质采样检测,并分析其卫生状况,为提高农村生活饮用水的质量提供依据。方法按《2014福建省饮用水卫生监测方案》(闽卫办疾控发明电[2014]190号)采集部分农村集中式供水和分散式供水水样,对其常规指标进行检测;水质检验按《生活饮用水标准检验方法》进行检测;水质评价按照《生活饮用水卫生标准》进行评价。结果集中式供水合格率为50.5%,出厂水合格率为62.0%,未梢水合率为16.4%,分散式供水合格率为63.2%,总合格率为52.3%。不合格项目指标主要为总大肠菌群41.4%,游离余氯39.5%,菌落总数35.9%,耐热大肠菌群7.0%。结论南平市部分农村生活饮用水合格率低,游离余氯和微生物不合格为主因[1]。

Objective Taking samples of part of potable water in rural areas of Nanping,testing water quality,and analyzing sanitary situation.Methods Water samples of part of centralized water-supply system and decentralized water-supply system were collected and monitored according to drinking water hygiene inspection scheme of Fujian province in 2014;Water quality was tested according to the drinking water standard examination method（GB/T 5750.2-2006）;Water quality was evaluated according to the drinking water sanitary standard（GB5749-2006）. Results The qualified rate of centralized water supply is50.5%（the qualified rate of product water is 62.0% and tap water is 16.4%）;The qualified rate of the decentralized water supply is 63. 2%;The total pass rate is 52. 3%. The unqualified indices of the project are mainly the total coliform group 41. 4%,free residual chlorine 39. 5%,total bacterial count 35. 9%,and heat resistant coliform group 7.0%. Conclusions Part of the potable water in rural areas of Naping has low qualification rate,the main reason for this is the excessive existence of the free residual chlorine and microorganism.