西安市饮水型地方性氟中毒病情调查结果分析

Analysis of drinking water-born endemic fluorosis associated with drinking water in Xi'an in 2002

目的了解西安市饮水型地方性氟中毒(地氟病)病情现状,用于指导全市地氟病防治。方法Dean法进行儿童氟斑牙诊断,X线拍片检查氟骨症,离子选择电极法测定水氟、儿童尿氟。结果儿童氟斑牙患病率为31.53%,尿氟均值为1.41mg/L,成人氟骨症X线检出率为44.74%。结论西安市属于地方性氟中毒轻病区,但有些地方病情仍很严重,建议继续加强病区改水,只有长期提供合格的低氟水,病情才能得到有效控制。

Objective To investigated water-related endemic fluorosis in Xi'an area so as to guide the disease prevention. Methods The dental fluorosis of children was examined with Dean's index and skeletal fluorosis diagnosed by X-Rays. Fluoride level in drinking water and urine were determined with F-ion selective electrode. Results The rate of dental fluorosis was 31.35%, and the child averaged fluoride level in urine was 1.41 mg/L. The adult skeletal rate of skeletal fluorosis by X-Rays was 44.74%. Conclusions Fluorosis is not severe in most area of Xi'an, which can be effectively controlled through supplying edible low fluorine water constantly.