水质卫生指数综合评价方法在农村改水中的应用研究

目的为科学的指导农村选择、评价居民生活饮用水源,给农村改水提供可行性的依据。方法在对全县范围农村饮用水普查的基础上,对不同地理类型的114个水源质量进行了参数检验,并应用国内外目前较为新颖先进的水质卫生指数综合评价的方法,对其中不同地理类型的塘水、河水、井水、水库水等33个水源及2个水厂出厂水中的18个参数进行了分级评价。结果无论是山区、丘陵和圩区,各类水源毒理学指标基本安全。在以国家发布的《农村实施生活饮用水准则》为标准对水质的18个参数进行综合分级评价,5级水占15.5%,4级水占75.5%,3级水占9.10%。分指数最大值(Kimax)以细菌总数最高。在去除细菌总数单项参数后,5级水消失,4级水下降为3.03%,而3级水上升为87.87%,2级水占9.1%,表明了在农村不同的饮水条件下,细菌总数单项指标对水质分级影响程度较大。结论应用目前较为先进新颖的水质卫生综合指数(KI)评价方法来判断农村生活饮用水源质量的级别具有较高的可行性和实用性。

Study on the Index of the Health Quality of Water the Combination Assessment Method Changes the Source of Water Application in the Village

OBJECTIVE At this paper,author was based on the surveillance to the quality of drinking water sources in the Lujiang countryside area,by means of the index of the hygiene quality of the water sources. METHODS Calculated and evaluated the respective and combination index of the thirty-three kinds of the quality of the drinking water sources in the different geographical distribution areas.RESULTS The results showed that the toxicology parameters of the drinking water sources were relatively safe in the different geographical areas.The maximum of the respective index were total number of bacteria and coliformgrop. The grade five water sources account for 15.15%. The grade four water sources account for 75.75%. The grade three water sources account for 9.10%.In short of the parameter of total number of bacteria,the grade four,three,two water sources account for 3.03%,87.87%,9.1%respectively. It showed the total number of bacteria was main affecting factor of the water sources quality with the different drinking water sources classifying in the counttyside. CONCLUSION The combination index of the hygiene quality of the water sources were avavilable and pratical to the judging the grader of quality of water on the survey of the drinking sources in the countryside.