通过对安康市杨家营村氟中毒的调查，证实该村人群饮水含氟量过高和燃用含氟量过高的石煤污染室内空气，食品等所致，属于饮水与燃煤氟中毒。
Through the investigation on fluorosis in Yangjiaying village , Ankang city , that air in room and food were polluted by high fluorine in drinking water and burning coal was proved .
杨家营