贵州西部氟中毒地区氟来源地质背景研究

贵州省西部广泛分布上二叠统煤系地层,燃煤型氟中毒严重影响当地居民的身体健康。引起氟中毒的氟是多来源的,影响氟中毒的因素是多方面的。高氟含量的岩石粘土岩、煤、页岩等是氟的初始来源体;高氟含量土壤是氟第二个层次的来源;高氟含量土壤中种植的农作物是第三个层次的来源;燃煤烟尘直接排放室内空气中和用燃煤烘烤食物等,使空气、食物和水中氟含量增高,是一重要的人为氟来源。人通过呼吸高氟含量的空气和食(饮)用高氟含量的食物(水)将氟沉淀在体内,造成氟中毒。

The fluorine sources in the endemic fluorosis areas,western Guizhou

The Upper Permian coal-bearing strata are widespread in western Guizhou.The residents' health has long been seriously threatened by the coal-burning endemic fluorosis.The authors in the present paper contend that the fluorine which leads to the endemic fluorosis has polyphyletic origins,including: 1 high-fluorine rocks such as claystone,coal and shale; 2 high-fluorine soils originated from the weathering of the high-fluorine rocks including coal; 3 the crops planted in the high-fluorine soils,and 4 higher contents of fluorine in the indoor air polluted by the waste smoke from the burning coal, food toasted by the burning coal and water with higher contents of fluorine.