河北省阳原县高氟区水氟含量和地方性氟中毒病情调查

Investigation on fluoride content in well water and prevalent state of fluorosis in endemic fluorosis area of Yangyuan County Hebei Province

目的了解河北省阳原县地方性氟中毒病区水氟含量以及人群氟中毒患病情况。方法选择阳原县地方性氟中毒病区南洼村和非病区东堡村为调查点,测定井水氟含量、儿童尿氟含量,并进行儿童氟斑牙患病率及人群残废型氟骨症情况调查。结果南洼村井水氟含量明显高于东堡村(P<0.01),井水氟含量范围为2.20～2.91mg/L,均超过《生活饮用水卫生规范》(2001),南洼村8～12岁儿童氟斑牙患病率为81.4%,其氟斑牙患病率和尿氟含量均明显高于东堡村(P<0.01);南洼村仍存在成人残废型氟骨症患者。结论阳原县地方性氟中毒病区南洼村井水氟含量超标严重,病区人群仍存在严重的氟中毒流行。

Objective To understand the fluoride contents of well water and prevalent state of fluorosis in endemic fluorosis area of Yangyuan County in Hebei Province.Method Randomly selecting 2 villages as objects,including one endemic area named Nanwa and one non-endemic area named Dongbu.Detemination fluoride content in well water and,investigation of dental fluorosis prevalence rate and deformed skeletal fluorosis in these villages.Results The fluoride content in well water of Nanwa was obviously higher than that in Dongbao（P〈0.01）,contents at the range of 2.20 to 2.91mg/L,which were higher than the limit of Sanitary Standard for Drinking Water Quality（2001）.The urine fluoride and dental fluorosis rate of children in Nanwa were obviously higher than that in Dongbao（P〈0.01）,the dental fluorosis rate was 81.4%.There were 26 deformed skeletal fluorosis patients in Nanwa.Conclusions The fluoride contents in well water of endemic fluorosis area were seriously higher than the sanitary standard and people in endemic area still had severe fluorosis.