安徽省淮北市地下水中氟的空间分布特征及成因  

Spatial Distribution Characteristics and Origin of Fluorine in Groundwater of Huaibei City, Anhui Province

作　　者：邢怀学[1] 李亮[1] 葛伟亚[1] 叶念军[1] 龚建师[1] 周锴锷[1] 朱春芳[1] 

机构地区：[1]中国地质调查局南京地质调查中心,江苏南京210016

出　　处：《地球学报》2014年第2期163-168,共6页Acta Geoscientica Sinica

基　　金：中国地质调查局地质调查项目(编号:1212010634505)资助

摘　　要：在水文地质调查、取样测试的基础上,以安徽省淮北市地下水中的氟为研究对象,对338个地下水样品的测试结果进行了分析。结果表明:淮北市地下水中氟的含量在空间分布上总体呈从北向南逐渐降低趋势,北部氟含量均值在2.0 mg/L以上;氟的超标率35.5%,高于淮河流域地下水氟的超标率20.14%(淮河流域地下水污染项目数据统计结果);浅层地下水(≤50 m)氟超标率40.45%,深层地下水(>50 m)氟的超标率16.9%;地下水中氟超标与地质背景、人类活动以及环境条件有关。On the basis of hydrogeological survey and sample analysis, fluorine in the groundwater was taken as the study object in Huaibei City, Anhui Province. Analyses of 338 groundwater samples show that the overall spatial distribution of fluorine decreases from north to south. The mean of the fluorine values in the north is higher than 2.0 mg/L. The standard-surpassing rate of fluorine content of the groundwater is 35.5%, much higher than that of the whole Huaihe River Basin whose standard-surpassing rate is 20.14%. The standard-surpassing rate of shallow groundwater （≤ 50m） fluorine content is 40.45%, which is higher than that of the deep groundwater （＆gt; 50m） whose standard-surpassing rate is 16.9%. Excessive fluorine in groundwater is related to geological background, human activities and environmental conditions.

关 键 词：淮北市 地下水 氟 空间分布特征 成因 

分 类 号：P641.13[天文地球—地质矿产勘探] P641.3[天文地球—地质学]