摘要
目的了解甘肃省居民饮用水含砷量分布及饮高砷水人群受威胁情况,为科学防治饮水型地方性砷中毒提供依据。方法于2005—2011年,按照全国饮用水高砷水源筛查方案,选择13个市(州)42个县进行饮水砷含量筛查,对检出高砷水源的地区人群进行受危害情况调查。结果筛查范围覆盖全省13个市(州)的42个县(区),筛查454个乡1 596个村约177.1万人。采集水样24 965件,筛查出水砷含量>0.05 mg/L的超标水样181件,超标率为0.73%;其中,水砷在>0.05～0.2 mg/L的占90.61%(164/181),>0.2～0.5 mg/L的占5.52%(10/181),>0.5～1.04 mg/L的占3.87%(7/181)。砷含量超标水源主要分布在夏河、合作、舟曲、环县、徽县、成县、天祝、漳县、两当、临潭10个县的58个村,约有4.6万人受到砷中毒威胁。在调查的8 489名居民中共检出砷中毒患者157例。确定出饮水型砷中毒病区12个,其中,重病区、中病区各1个,轻病区10个,以夏河县病情最重,患病率达49%。结论甘肃省饮水高砷区分布范围较广,砷中毒受威胁人口多,局部地区病情严重。
Objective To observe the arsenic content in drinking water and the population consuming high arsenic drinking water in Gansu province in order to provide scientific guide for the prevention and control of water-born endemic arsenism. Methods The survey was carried out according to the national surveillance scheme of endemic arsenism in 2005-2011 ,arsenic content in drinking water were screened in 13 cities of 42 counties,the investigation of the detection of high-arsenic water area population was endangered. Results Among 24 965 samples from 1 596 villages, 181 samples accounting for 0.73% showed the arsenic content more than 0.05 rag/L, 164 samples accounting for 90.61% 〉0.05-0.2 mg/L, 10 samples accounting for 5.52% 〉0.2-0.5 mg/L,7 samples accounting for 3.87% 〉0.5-1.04 mg/L. High arsenic water sources mainly distributed in 58 villages in Xiahe, Hezuo,Zhouqu and so on,about 46 thousand people were impacted by drinking water with higher levels of arsenic. A total of 157 patients with arsenism were detected among 8 489 residents, 12 endemic arsenic areas were identified,and in Xiahe, the prevalence rate was the highest. Conclusion The drinking water sources with higher levels of arsenic widely distributed in Gansu province,China, and many local population are still suffered from endemic arsenism.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2013年第2期140-143,共4页
Journal of Environment and Health
基金
中央转移支付地方病资助项目(2004-2009)
甘肃卫生行业科研计划项目(GSWST09-02)
关键词
砷
饮水
地方性砷中毒
Arsenic
Drinking water
Endemic arsenism
