白城市地下水中氟分布特征及风险评价

doi:10.16232/j.cnki.1001-4179.2019.06.006

摘要/Abstract

摘要： 高氟地下水导致的氟中毒是一直以来困扰白城市居民的地方病。岩石中的氟在风化、流水搬运、淋滤、蒸发浓缩等作用的影响下富集于该地区的地下水中，致使部分地区地下水中氟超标。首先利用白城市地下水检测数据结合SPSS、Aquachem等软件对研究区潜水、承压水的水化学参数和类型进行对比分析。其次利用Kriging插值法分别绘制研究区潜水、承压水氟含量分布图，对各含水层中氟的分布特征进行对比研究。最后结合USEPA健康风险评价模型进行风险评价研究。结果表明：研究区地下水整体上呈弱碱性，属于淡水，潜水的水化学类型以HCO3-Ca，HCO3-Ca+Mg，HCO3-Ca+Na，HCO3+Cl-Na，HCO3-Na+Mg型为主，第四系承压水的水化学类型以HCO3-Na，HCO3-Na+Ca，HCO3-Na+Mg型为主；研究区潜水中氟含量超标区整体大于承压水，研究区潜水的健康风险区分布范围广泛，主要分布在研究区的中部和北部。

关键词: 潜水, 承压水, 氟, 分布特征, 对比分析, 风险评价

Abstract: Fluorosis caused by high fluorine groundwater is an endemic disease that has plagued Baicheng residents. The fluorine in rocks is concentrated in the groundwater of this area under the influence of weathering, water transportation, leaching, evaporation and concentration, which causes the fluorine concentration in the groundwater of some areas exceed the standard. Firstly, the chemical parameters and types of underwater and confined water in the study area were compared and analyzed by using the groundwater detection data of Baicheng city combined with SPSS, Aquachem and other software. Secondly, Kriging interpolation method was used to draw the fluorine content distribution of the submerged and confined water respectively in the study area, and the fluorine distribution characteristics in each aquifer were compared and studied. Finally, the risk assessment model of USEPA health risk assessment was used to assess the risk. The results showed that the groundwater in the study area is weak alkaline fresh water. The hydrochemical types of water are mainly HCO3-Ca, HCO3-Ca+Mg, HCO3-Ca+Na, HCO3+Cl-Na, HCO3-Na+Mg and HCO3+Cl-Na. The hydrochemical types of Quaternary confined water are HCO3-Na, HCO3-Na+Ca and HCO3-Na+Mg. The overall area with higher fluorine content over the standard in phreatic aquifer is larger than that of the confined water. The health risk area in the phreatic aquifer of the study area is widely distributed, mainly in the central and northern parts of the study area.

Key words: Phreatic water, confined water, fluorine, distribution characteristics, comparative analysis, risk assessment

刘达，肖长来，梁秀娟，冯茜，李宏伟. 白城市地下水中氟分布特征及风险评价[J]. 人民长江, doi: 10.16232/j.cnki.1001-4179.2019.06.006.

LIU Da，XIAO Changlai，LIANG Xiujuan，FENG Xi，LI Hongwei. Distribution characteristics of Fluorine in groundwater and health riskassessment in Baicheng City, Jilin Province[J]. , doi: 10.16232/j.cnki.1001-4179.2019.06.006.

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白城市地下水中氟分布特征及风险评价

Distribution characteristics of Fluorine in groundwater and health riskassessment in Baicheng City, Jilin Province

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