Fluoride in Changshou county is lost, where fluorine disease is unfrequent.The value of Fluoride content from different deep soils in fluorosis areas is higher than in non-fluorosis areas.

• 地氟病区深层、表层土壤F含量均远高于非病区，土壤F含量与地氟病发病率间具极显著正相关，土壤F含量对发病率具有明显的影响。