【摘要】 目的了解运城市地方性氟中毒病区改水后居民氟中毒病情现状。方法采用流行病学调查方法。结果重度病区侯家卓改水后饮水氟10年间稳定在1.0 mg/L以下,8～12岁儿童氟斑牙患病率及氟斑牙指数,随改水时间的延长而逐渐降低,改水12年后无新病例发生,儿童尿氟保持在1.0～1.4mg/L,成人氟骨症检出率明显降低。中度病区杜东庄改水后水氟为1.25 mg/L,超过改水标准,虽然以上几种指标呈下降趋势,但都高于侯家卓。结论饮水型地方型氟中毒病区改水后保证水源水氟稳定在1.0mg/L以下,是防治此病的关键。更多还原

【Abstract】 Objective To investigate the status of endemic fluorosis after practicing drinking-water improvement in Yuncheng City.Methods Retrospective epidemic methods.Results In the disease-ridden Houjiazhuo Village,the concentration of drinking-water fluoride was steadily under1.0mg/L during a period of10years drinking-water improvement.Both the dental fluorosis morbidity and dental fluorosis index in8～12years old children showed a decrease trend along with the going of drinking-water improving,there was no new cases occur after12years improvement.Fifteen years later,the urine fluoride of children maintained low level(1.0～1.4mg/L),and the bony syndromes of fluorosis in adults lightened gradually.Conclusion The key to prevent endemic fluorosis is to ensure the quality of drinking-water(the fluoride concentration is steadily under1.0mg/L).更多还原