摘要
新疆昆仑山麓洪积──—冲积平原是地方性氟中毒病区。为了解该地区地理环境与地方性氟中毒关系，我们于１９９０年在有代表性的和田地区进行了调查。调查区内水氟分布明显受地理环境影响，山区水氟低，儿童氟斑牙率低；随着海拔高度下降，水氟和儿童氟斑牙率均上升，呈正相关关系。儿童群体尿氟与氟斑牙率亦呈密切正相关关系。平原低处邻近沙漠处氟中毒病情较重。有些村镇儿童氟斑牙率高于９０％。同一地区地下水氟含量多高于地面水且呈密切正相关关系。该区气侯极干旱，在水氟为０．５ｍｇ／Ｌ时已有氟斑牙流行。目前该地区正在开展改饮地下水的改水工作以控制消化道传染病。为此，应注意水氟含量以防地方性氟中毒病区扩大和病情加剧。
The distribution of water fluoride on the diluvial─alluvial plain in front of the Kunlun Moun- tains in Hotan and the relation between water fluoride and endemic fluorosis were investigated in 1990. It is an epidemic area of endemic fluorosis. The climate is extreme dryness. The findings showed a significant relation-ship between the geographical environment and water fluoride distribution and fluorosis. In the mountainus are the water fluoride was low, and the rate of mottled enamel of schoolchildren wasless than 30%. Both the water fluoride and the rate of mottled enamel among the chilldren increased with the altitude descended. In the lower part of the plain,the water fluoride was usually over l. 0 mg/l,and the rate of dental fluorosis rate was not less than 60%and over 90%in some villages near the desert. The dental fluorosis, calculated from the regression equation of dental fluorosis rate and water fluoride level,was over 30%as the water fluo-ride more than 0.5mg/l. The fluoride level of subterranean water was always higher than that of surface wa-ter at same place. The urinary fluoride increased with the increase of dental fluorosis rate among the schoolchildren.
出处
《地方病通报》
1995年第2期55-59,共5页
Endemic Diseases Bulletin
关键词
地方病
氟中毒
水氟
地理环境
海拔高度
昆仑山
Endemic fluorosis
Water fluoride
Altitude
Geographical environment
Diluvial─alluvial plain
Kunlun Mountains
Hotan, Xinjiang.
