云南省饮用水源高砷地区分布调查

Survey of High Arsenic-containing Drinking Water Source Distribution in Yunnan Province

目的了解云南省重点地区饮用水源高砷分布范围,为进一步调查全省地方性砷中毒病情提供科学依据。方法采用半定量法进行水砷筛查,对>0.03mg/L的水样进行定量分析。以云南省地图为背景,用ArcGIS软件绘制专题地图。结果调查覆盖35个县(市、区)的8585个自然村,有11个县45个村水砷含量超标。结论云南省目前确定水源性高砷地区分布在3个州(市)的11个县、45个自然村,这些地区是今后开展地方性砷中毒病情调查和监测防治工作的重点地区。

Objective To explore the distribution of high arsenic-containing drinking water source in key area of Yunnan province and provide scientific evidence for investigating the prevalence of Water-type endemic arsenicosis.Methods The water arsenic was screened with half quantitative method of fast test??kit.The samples with level of arsenic over 0.03mg/L were analyzed quantitatively.ArcGIS 10.2 was used for drawing thematic maps based on Yunnan vector maps.Results Out of the 8585 vil ages from 35 counties,45 vil ages from 11 counties were found to have high arsenic-containing drinking water sources.Conclusion There are 45 vil ages from 11 counties in 3 prefectures to have high arsenic-containing drinking water source,which are key areas to investigate and monitor the prevalence of Water-type endemic arsenicosis.