摘要
国内外闻名的黔西地方流行病氟中毒常常归因于黔西晚二叠世煤中高含量的氟以及不科学的燃煤方式。通过对黔西 5 0个煤层刻槽样品的研究发现 ,黔西晚二叠世煤中氟的含量范围为 16 .6～ 5 0 0 μg/ g,算术均值为83.1μg/ g,接近于中国大部分煤中氟的含量 (82 μg/ g)和美国煤中氟的平均含量 (98μg/ g)。当地饮用水和新鲜的玉米中氟的含量亦很低 ,不足以导致氟中毒。然而 ,当地居民把粘土作为煤燃烧的添加剂和制作煤球的粘合剂 ,这种粘土中的氟含量很高 ,为 10 0 .8～ 2 4 5 5 .7μg/ g,均值为 10 2 7.6 μg/ g。
The well-known endemic fluorosis in western Guizhou Province, southwest China, was usually attributed to the high-content fluorine in late Permian coals. This study found that the average content of fluorine in fifty coal channel samples from western Guizhou Province ranges from 16.6 μg/g to 500 μg/g, with an average of 83.1 μg/g, which is close to the world average (80 μg/g) and that of most Chinese coals (82 μg/g). Additionally, the fluorine content of drinking water and fresh corn are too low to lead to fluorosis in western Guizhou Province. However, the clay used as an additive for coal-burning and as a binder for briquette-making by local residents has a very high content of fluorine, ranging from 100.8 μg/g to 2455.7 μg/g, with an average of 1027.6 μg/g. The endemic fluorosis probably should be caused by the clay with a very high content of fluorine.
出处
《地质论评》
CAS
CSCD
北大核心
2005年第1期42-45,共4页
Geological Review
基金
国家高技术研究发展计划 ( 863计划 ) (编号 2 0 0 4AA64 92 0 0 )
国家自然科学基金项目 (编号 40 2 0 2 0 14 )资助的成果
