5.12地震一周内都江堰市农村分散式供水的影响分析
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摘要
目的通过分析5.12地震前后都江堰市农村分散供水饮水状况,了解地震对水质的影响,为建立地震等应急状况下饮用水安全评估提供一定依据。方法采取随机抽样的方法,对5.12地震都江堰市农村分散式供水饮用水进行现场调查、检测部分应急指标,检测结果与地震前进行比较。结果不纳入消毒剂余量指标评价地震前后农村分散式供水的总体水质合格率没有变化(χ2=3.62,P>0.05),单项指标浑浊度地震前合格率均高于地震后(χ2值=16.61,P<0.05)。结论 5.12地震对农村分散式供水的影响主要是浑浊度、臭和味、肉眼可见物等指标,地震等应急状况下首先应通过水质的色、浊、臭和味进行现场初筛,然后根据实际情况有针对性地进行现场水质卫生检测或实验室检测。
Objective To explore the influence on drinking-water in rural area of Dujiangyan city and provide reference for establishing safe assessment of the drinking water at emergency by analyzing relevant data before and after 5.12 Earthquake.Methods Randomized samples of decentralized drinking water were collected from rural areas of Dujiangyan city,and were determined concerning certain emergency indexes with a comparison of before and after the Quake.Results The qualified rate of the drinking water monitored after earthquake was statistically equivalent of that of before earthquake(χ2=3.62,P>0.05)excluding the disinfectant residual;while the rate of single standard turbidity before earthquake was higher than that of after(χ2=16.61,P<0.05).Conclusion The influence of earthquake on the drinking-water of rural area are mainly turbidity,smell and taste,which indicate that the color,turbidity,smell and taste should be screened at first in emergency,and then decided whether monitored at site or in laboratory.
Objective To explore the influence on drinking-water in rural area of Dujiangyan city and provide reference for establishing safe assessment of the drinking water at emergency by analyzing relevant data before and after 5.12 Earthquake.Methods Randomized samples of decentralized drinking water were collected from rural areas of Dujiangyan city,and were determined concerning certain emergency indexes with a comparison of before and after the Quake.Results The qualified rate of the drinking water monitored after earthquake was statistically equivalent of that of before earthquake(χ2=3.62,P>0.05)excluding the disinfectant residual;while the rate of single standard turbidity before earthquake was higher than that of after(χ2=16.61,P<0.05).Conclusion The influence of earthquake on the drinking-water of rural area are mainly turbidity,smell and taste,which indicate that the color,turbidity,smell and taste should be screened at first in emergency,and then decided whether monitored at site or in laboratory.
引文
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[2]朱鸿斌,程娟,赵大余,等.四川省“5.12”地震灾区饮用水卫生情况分析[J].预防医学情报杂志,2008(24)11:849-851.
[3]刘斌,陈俊,杜慧兰,等.2008年地震后成都市重灾区饮用水监测结果分析[J].预防医学情报杂志,2010,26,(01):34-36.
[4]秦海宏,沈慧,袁东,等.对"应急状况下生活饮用水安全性评价标准"制定的思考[J].管理与职业医学,2009,26(4):419-420.
[5]Planning for and Responding to Drinking Water Contamination Threats and Incidents[M].United States Environmental Pro-tection Agency.2003,11.
[6]张世英.关于四川南坝镇震后灾区饮用水消毒的思考与建议[J].华南预防医学,2008(34)5:5-6.
[7]侯悦,蒋兴锦,卓鉴波,等.军队战时饮用水卫生标准[J].解放军预防医学杂志,1994(12)2:90-93.
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