我国依然是以煤为主要燃料的国家,煤含有大量硫、氟等有害物质,有的含硫量达5％～10％,含氟量超过5000mg/kg。一些地区,不仅煤炭含氟量高,拌煤泥土含氟量更高,江西西部和云南昭通就属这种类型。为降低燃煤的室内氟污染,近数年来,我国各煤烟型氟中毒地区,进行家庭炉灶改良,建立烟囱排毒,已取得了效果。但是,烟囱只能减 China is still a country with coal as the main fuel. Coal contains a large amount of harmful substances such as sulfur and fluorine. Some sulfur content reaches 5% -10% and the fluorine content exceeds 5000mg / kg. In some areas, not only coal has a high fluorine content but also a higher fluorine content in coal-blend soil. This is the case in western Jiangxi and Zhaotong in Yunnan. In order to reduce indoor fluorine pollution from coal burning, in recent years, various domestic-flue-cured fluorosis areas have been upgraded with domestic stoves and detoxification of chimneys has been achieved. However, the chimney can only be reduced