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

Jie Tang,Yucong Duan,Yunke Qu,Yindong Dai,Ben Liu,Zhaoyang Li,Jingjing Wang

doi:10.3390/w13050629

Abstract

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

Highlights

The study area is located in the Midwest of Songnen Plain
The remote sensing images were preThe loose layers are distributed from the Lower Pleistocene to the Holocene, while the treated by geometric correction and mosaic and mask extraction
The Chagan Lake Catchment is located in the hinterland of Songnen Plain, which is low-lying and flat terrain, with a slope of 1/8000–1/5000

Summary

Introduction

Fluorine is one of the essential trace elements for life, its intake level seriously affects human health and the growth of plants and animals. When the concentration of F– in drinking water is higher than 1.5 mg/L, it will cause fluorosis [1,2,3]. When the concentration of F– in water is too high, it can affect the metabolic activities of aquatic plants, damage the growth of plants, and lead to a large number of deaths of aquatic plants [4]. When the concentration of F– in water exceeds the standard, F– accumulation in aquatic animals such as fish would endanger human health indirectly through the effect on the food chain. Distribution and Origin of Fluoride in Water and Soil Environment and Biological Effects in Jilin Qian’an.

Methods

Results

Conclusion