title: Source apportionment of fluorine pollution in regional shallow groundwater at You'xi County southeast China.
abstract: Source apportionment of fluorine pollution in the regional shallow groundwater at You'xi County, southeast China, has been analyzed by means of monitoring F(-) ion change characteristics in this area. Meanwhile, pollution sources and influencing factors of the shallow groundwater have been uncovered by studying the correlation between F(-) and other related ions such as Na(+), Ca(2+), Cl(-), NO3(-), HCO3(-), as well as (K(+) + Na(+))/Ca(2+) ratio (R) and pH effect. The results show that F(-) ions in shallow groundwater at the study area come mainly from the dissolution of fluorinated minerals in a form of fluorite (CaF2), the so-called water-rock interaction, and there is a higher possibility for the occurrence of fluorine water where the ratio of (K(+) + Na(+))/Ca(2+) exceeds a value of 2.1. Moreover, the release and migration of F(-) ions have been favored by the alkaline environment in this study area.
authors.affiliation: Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China. Electronic address: lujian05@fjirsm.ac.cn.
authors.forename: Jian
authors.initials: J
authors.lastname: Lü
authors.affiliation: Fujian Provincial Geological Environment Monitoring Center, Fuzhou 350001 Fujian, PR China.
authors.forename: Haiyuan
authors.initials: H
authors.lastname: Qiu
authors.affiliation: Key Laboratory of Solid Mechanics, Ministry of Education of China, Tongji University, Shanghai 200092, PR China.
authors.forename: Huangbin
authors.initials: H
authors.lastname: Lin
authors.affiliation: Fujian Bureau of Coal Geology, Fuzhou 350005 Fujian, PR China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Yuan
authors.affiliation: Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Chen
authors.affiliation: Fujian Provincial Geological Environment Monitoring Center, Fuzhou 350001 Fujian, PR China.
authors.forename: Rurong
authors.initials: R
authors.lastname: Zhao
mesh_terms: D002681:China; D004784:Environmental Monitoring / Q000379:methods*; D005459:Fluorides / Q000032:analysis; D005461:Fluorine / Q000032:analysis*; D005843:Geography; D060587:Groundwater / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D007477:Ions; D045483:Rivers; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification / Q000379:methods
chemical_list: D007477:Ions; D014874:Water Pollutants, Chemical; D005461:Fluorine; D005459:Fluorides
keywords: Fluorinated mineral; Fluorine pollution; Groundwater; Source apportionment