Study on Formation Causes of High Fluorine Groundwater in Hetao Area of Inner Mongolia

Abstract

Based on the results of regional eco-geochemical survey combined with a mass of analytical data for regional underground water,fluorine-content classification maps are drawn and the formation causes of high fluorine groundwater are studied.The results of the study show that the natural factors including local climate condition,geological factors including lithology,soil property,physical and chemistry condition of the groundwater,lake sediment type and human activity factor in the research region are the major causes of the formation of high fluorine groundwater.And dominant factors are natural factor and geological factor.But fluorine pollution of phreatic water in outskirts of Baodou city is from the human activities including discharge of sewage and waste residue from Baotou steel plant.Suggestions are also put forward to improve regional environmental condition in fluorosis region.