2009～2012年甘肃陇南市农村饮用水安全工程水质监测分析

Analysis of quality surveillance of water engineering in rural areas of Longnan,Gansu from 2009 to 2012

目的掌握甘肃省陇南市农村饮用水安全工程水质状况及变化趋势,为今后相关部门制定有效的改水措施提供科学依据。方法按照《生活饮用水标准检验方法》(GB/T5750-2006)中规定,对陇南市所辖9个县的部分农村饮用水安全工程水质在枯水期和丰水期进行了水样的采集和检测,并对结果进行统计分析。结果 2009～2012年共检测水样2 127份,合格1 001份,合格率47.1%,其中枯水期1 055份,合格618份,合格率58.6%;丰水期1 072份,合格383份,合格率为35.7%。结论随着陇南市农村饮用水安全工程不断深入开展,农村饮用水水质状况逐渐改善;影响水质的主要因素是微生物学指标,与水源周围环境的污染和消毒工作开展不到位有关,需采取相应措施加以改善。

Objective In order to grasp water quality and change trend of drinking water safety project in rural areas of Long- nan City, to provide scientific basis for the relevant departments to formulate effective improvement measures. Methods Ac- cording to the Standard Examination Methods for Drinking Water （GB/T5750-2006）, water samples were collected from the rural areas with drinking water safety project in 9 counties of Longnan City in dry and wet season, and then the samples were tested and statistically analyzed. Results Totally, 2 127 water samples were collected during 2009-2012. There were 1 001 qualified samples, with qualified rate of 47.06%, including 1 055 water samples collected in dry season with 618 qualified samples （qualified rate of 58.58%）, and 1 072 water samples collected in the wet season with 383 qualified samples （qualified rate of 35.73%）. Conclusions With the further development of drinking water safety project in rural areas of Longnan City, water quality of drinking water in rural areas is increasing gradually. Microbiology is the main index affecting water quality, and mainly influenced by the surrounding water contamination and poor disinfection work. Corresponding measures should be taken to improve the situation.