某部机关及驻地儿童氟斑牙患病与环境氟含量关系的调查研究

INVESTIGATION ON THE RELATION BETWFEN THE INCIDENCE OF MOTTLED ENAMEL INCHILDREN NEAR THE STATION OF TROOPS AND ENVIRONMENTAL FLUORINE CONTENT

本文报告了某部机关儿童及驻地儿童氟斑牙患病与环境氟含量的关系。结果显示，驻地儿童氟斑牙患病率为４０．０６％；部队机关儿童氟斑牙患病率为１６．５４％通过实验监测：驻地及部队饮水含氟量平均０．６７ｍｇ／Ｌ和１．１７ｍｇ／Ｌ；粮食、水果、蔬菜合氟量平均分别为１３８、１５９和１．７１ｍｇ／ｋｇ；大气氟含量为０．０３４２ｍｇ／ｍ￣３，超标现象较严重。几种摄氟途径使驻地和部队人员日均总摄氟量在３．６３～６．６７ｍｇ·日／人之间，其中大气氟含量等标评价指数百分率都在９２．２０％以上。提示，大气氟污染及日均总摄氟量过高是病区的主要致病因素。

he investigation demonstrated that the incidence of mottled enamel was 40.06%in the children near the station of 80310 troops,but only 16.54%in the children of 80310 troops.The monitoring data showed that the average fluorine content was 0.6mg/L and 1.17mg/L in the drinking water near the station of the troops and inside the troops respectively. The average fluorine content in grain,fruit and vegetables was 1.38,1.59 and 1.71mg/kg respectively,and the average fluorine content of the air was 0.0342mg/m￣3.All of these were much higher than the normal.The calculated value of daily average total fluorine intake of the troops and the people near the station of the troops was 3.63～6.67mg/day/person in which,the per-centage of Equal Criterion Evaluation Index of air fluorine content was over 92.20. The study suggested that the air fluorine pollution and the higher daily total fluorine intake were the main factors in leading to mottled enamol in this area.