Study on Environmental Factors of Fluorine in Chagan Lake Catchment, Northeast China

The Chagan Lake Catchment is located in the midwest of Songnen Plain, which a typical high fluoride groundwater area. High water has an important impact on economic development and ecosystem stability Lake. In this study, spatial distribution characteristics influencing factors fluorine are discussed by using hydrochemistry mathematical statistical analysis. study area was characterized as Na+-rich Ca2+-poor, with pH value HCO3– content. average concentration F– 3.02 mg/L, highest Qian’an County. dissolution fluorine-containing minerals desorption soil provided source groundwater, while calcite dolomite precipitation, cation exchange, evaporation favorable conditions for dissolving, migration, enrichment water. addition, surface 4.56 found Hongzi Pool Hua’ao Pool. elevated concentrations both were affected human factors, such rice planting conservancy project construction.