摘要
目的全面了解农村饮用水水质本底情况,为进一步开展农村饮用水水质全分析工作奠定基础。方法于2010年,对南方某省有代表性的7个地区13个市(县、区)的共40家农村水厂的出厂水水样进行106项指标全分析。结果共采集40件水样,合格15件,合格率37.50%。以地表水为水源的水样合格率为42.86%(15/35),以地下水为水源的水样全部不合格。采用完全处理、仅消毒的水样合格率分别为41.18%(14/34),20.00%(1/5);未处理的水样仅1件,且不合格。超标指标合格率从低到高依次是二氧化氯[50.00%(7/14)]、总大肠菌群[85.00%(34/40)]、耐热大肠菌群[87.50%(35/40)]、三氯乙醛[87.50%(35/40)]、铝[87.50%(35/40)]、锑[90.00%(36/40)]、贾第鞭毛虫[92.50%(37/40)]、亚氯酸盐[95.00%(38/40)]、浑浊度[95.00%(38/40)]、游离氯[95.80%(23/24)]、铊[97.50%(39/40)]、硫酸盐[97.50%(39/40)]、总硬度[97.50%(39/40)]、钠[97.50%(39/40)],其余指标均合格。结论该省农村饮用水总体合格率较低,消毒剂和微生物污染是主要的卫生问题。
Objective To know the drinking water quality of rural areas in southern China. Methods In 2010,a total of 40 rural water plants water samples from 13 cities （counties,areas） in 7 representative districts in one of southern provinces were analyzed for all 106 indicators of the standards of drinking water quality. Results Among 40 water samples, 15 were qualified,the qualified rate was 37.5%. The qualified rate of water samples from surface water was 42.86%（15/35） and all of the water samples from ground water were unqualified. The qualified rates of the completed treated water and treatment with single disinfection were 41.18%（14/34）,20%（1/5） respectively;The qualified indicators ranked as chlorine dioxide [50%（7/14）],total coliforms [85.00%（34/40）],heat-resistant coliforms[87.50%（35/40）],chloral hydrate[87.50%（35/40）],aluminum[87.50%（35/40）], antimony[90.00%（36/40）].Giardia[92.50%（37/40）],chlorate[95.00%（38/40）]turbidity[95.00%（38/40）],free chlorine [95.80%（23/ 24）],thallium[97.50%（39/40）],sulfate[97.50%（39/40）],total hardness[97.50%（39/40）],sodium [97.50%（39/40）]. Conclusion The qualified rate of drinking water quality is lower in investigated area, disinfectants and microbial contamination are the major health problem. Key words： Drinking water;Rural area;Health survey
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2011年第10期905-907,共3页
Journal of Environment and Health
关键词
饮用水
农村
卫生调查
Drinking water
Rural area
Health survey
