高氟摄入对工业氟污染牧区儿童健康的影响

The Effects of High Level Fluoride Intake on the Children's Health in Pastoral Area Contaminated by Fluoride in Industrial Waste Gas

为探讨高氟摄入对牧区儿童健康的影响，对工业氟污染区１５７名小学生及对照区１４４名小学生的总摄氟量和健康状况进行了调查。结果显示，污染区儿童由饮茶和食用高氟羊肉而摄入的氟化物为４．９９ｍｇ／ｄ（年日均值）；儿童的氟斑牙患病率高达９８．０９％，斑釉指数为０．９８６８；临床症状与体征的阳性率明显高于对照组；有关生化指标的改变与对照组比较均有显著性差异。说明长期摄入过量氟化物已对牧区儿童健康造成了明显影响。

An investigation on the total intake of fluoride and a health examination were carried out among 157 primary school students in industrialfluoridepolluted area and 144 controls,so as to explore the effects of high level fluoride intake on the children's health in pastoral areaThe results showed that the annual average of daily total fluoride intake from drinking tea and eating mutton contaminated by high concentrations fluoride in waste gas was 499 mg/d,the prevalence rate of dental fluorosis and dental fluorosis index were as high as 9809% and 09868 respectively among children in polluted areaBoth the positive rates of clinical symptoms and biochemical index were differed markedly from those of the control groupIt was suggested that long term intake of excessive fluoride could significantly affect Monogolian children's health