呼和浩特土默特左旗2004-2006年地方性砷中毒流行病学调查

Epidemiological Study of Endemic Arsenic in Tumotezuoqi in 2004-2006

目的查清土默特左旗高砷村庄分布及居民的砷中毒患病情况。方法生活饮用水砷浓度测定采用二乙氨二硫代甲酸银光光度法,居民砷中毒病情调查依据《地方性砷中毒诊断标准》WS/T211-2001进行。结果352个自然村生活饮用水砷浓度>0.05mg/L的有66个自然村,超标率为18.75%,涉及人口50995人;居民病情调查人数11507人,砷中毒病例3046人,患病率26.47%,其中以皮肤色素脱失表现为主,其次是皮肤角化,且有随水砷浓度和年龄的增加而增高的趋势。结论土默特左旗饮水型地方性砷中毒流行现状依然很严峻。

Objective To survey the distribution of high arsenic wells and the state of endemic arsenism in Tumotezuoqi. Methods According to ＂Asandard of diagnosis for endemic arsenism ＂ （ WS/T211 - 2001 ） and the arsenic content of drinking water was determined by DDC - Ag. Results There are 18.75% arsenic content in drinking water beyond national standard in 352 villages, involves the population 5 0995 people. Investigating 1 1507 people and arsenic poison case of illness 3046 people, prevalence rate is 26.47%. The patients suffered deferent degrees of arsenic depigmentation and keratosis. The detection rate tended to increase along with the rising of arsenic content and the age. Conclusion The endemic arsenic of Tumotezuoqi is still very severe.