2008—2010年江都市农村饮水监测分析

Monitoring and analysis on rural drinking water in Jiangdu city 2008-2010

目的为掌握江都市农村集中式供水系统水质状况,发现可能影响人群健康的因素,并积极采取相应措施,提高水质、控制介水传染病等与水相关的疾病。方法对2008—2010年3年的水样监测结果运用统计学方法进行分析。结果①2008—2010年3年内共采集水样1 005份,合格数为777份,合格率为77.31%。各年度的合格率依次为65.63%(210/320)、77.58%(256/330)、87.61%(311/355),经比较差异有统计学意义(P<0.01)。②3年的检测项次为22 612项次,项次总合格率为98.50%,浑浊度合格率为96.59%,锰合格率为89.81%,铁合格率为93.04%,氨氮合格率为99.72%,菌落总数合格率为98.00%,其余为100%。③枯水期水样合格率为87.66%,丰水期水样合格率为72.74%。④未经处理的水样合格率为55.55%,沉淀处理的水样合格率为73.33%,完全处理的水样合格率为80.38%。⑤地面水合格率为68.13%,地下水合格率为80.37%。结论水样合格率逐年上升,枯水期合格率高于丰水期,完全处理的水样合格率高于沉淀处理及未经处理的水样,地下水合格率高于地面水。

[Objective]To learn the status of water quality of rural centralized water supply in Jiangdu city,find out the potential factors that affect public health,and actively carry out the effective measures,in order to improve water quality and control the water-related diseases such as waterborne infectious diseases.[Methods]The statistical methods were applied to analyze the monitoring data of water samples collected from 2008 to 2010.[Results]① A total of 1005 water samples were collected during the three years,777 were qualified with the qualified rate of 77.31%.The annual qualified rate was respectively 65.63%（210/320）,77.58%（256/330） and 87.61%（311/355）,and the difference was significant（P〈0.01）.②22 612 item times were detected in three years,and the total qualified rate was 98.50%.The qualified rate of turbidity,manganese,iron,ammonia nitrogen,total bacterial count was 96.59%,89.81%,93.04%,99.72%,and 98.00%,respectively.The qualified rates in other indexes were 100%.③The qualified rate of water samples in the dry seasons and the wet seasons was 87.66% and 72.74%,respectively.④The qualified rate of un-treatment samples,water samples with deposition treatment and water samples with complete treatment was 55.55%,73.33% and 80.38%,respectively.⑤The qualified rate of surface water samples and ground water samples was 68.13% and 80.37%,respectively.[Conclusion]The qualified rates of water samples increase year by year.The qualified rate in the dry seasons is higher than that in the wet seasons.The qualified rate of water samples with complete treatment is higher than that of un-treatment samples and water samples with deposition treatment.The qualified rate of ground water samples is higher than that of surface water samples.