四川环境2024，Vol.43Issue(6)：17-22,6.DOI:10.14034/j.cnki.schj.2024.06.003
四川安宁河地表水及表层沉积物氟元素分布特征
Distribution of Fluorine in Surface Water and Sediment of Anning River Basin
陈俊尧 1刘瑶 1王洪波 1张健峰 2童敏 2罗鹏 2王雪梅2
作者信息
- 1. 四川省凉山生态环境监测中心站,四川西昌 615000
- 2. 西昌学院资源与环境学院,四川西昌 615000
- 折叠
摘要
Abstract
In order to examine the distribution characteristics of fluorine in the surface water and sediment samples of the Anning River,samples were collected from 14 locations along the main river and its tributaries in 2022.The fluorine content in both the surface water and the sediment were determined through the use of ion chromatography and molten alkali-ion selective electrode techniques,to evaluate the distribution patterns and factors that contribute to the presence of fluorine in the Anning River.The results indicated that fluorine contamination was confined to the tributaries of rare earth mining areas along the Anning River,and the average fluoride concentration in the water samples ranged from 0.14 to 1.33 mg/L.The majority(99％)of fluoride in sediment was found to be in a residual state,limiting its reactivity with other compounds and reducing the risk of toxicity to organisms.Additionally,a significant correlation was observed between water fluoride levels and the presence of rare earth elements(REE),barium(Ba),lead(Pb),and sulfate ions(SO42-)(P＜0.01).Principal component analysis indicated that the presence of water fluoride levels can be linked to the extraction and processing of rare earth minerals,with its chemical composition also being influenced by natural processes like rock erosion.关键词
安宁河/氟元素/地表水/表层沉积物Key words
Anning River/fluorine/surface water/sediment分类
资源环境引用本文复制引用
陈俊尧,刘瑶,王洪波,张健峰,童敏,罗鹏,王雪梅..四川安宁河地表水及表层沉积物氟元素分布特征[J].四川环境,2024,43(6):17-22,6.
