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Distribution and migration mechanism of fluoride in groundwater in the Manas River Basin, Northwest China

Hydrogeology journal, 2018-08, Vol.26 (5), p.1527-1546 [Peer Reviewed Journal]

Springer-Verlag GmbH Germany, part of Springer Nature 2018 ;Hydrogeology Journal is a copyright of Springer, (2018). All Rights Reserved. ;ISSN: 1431-2174 ;EISSN: 1435-0157 ;DOI: 10.1007/s10040-018-1780-8

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Title:
Distribution and migration mechanism of fluoride in groundwater in the Manas River Basin, Northwest China
Author: Liu, Yalei ; Jin, Menggui ; Ma, Bin ; Wang, Jianjun
Subjects: Alluvial plains ; Aquatic Pollution ; AQUIFERS ; Aquitards ; Arable land ; CALCIUM ; Cation exchange ; Cation exchanging ; Cations ; CHINA ; CHLORINE ; Condensation ; Condensation processes ; Distribution ; DRINKING WATER ; Earth and Environmental Science ; Earth Sciences ; ECOLOGICAL CONCENTRATION ; ENVIRONMENTAL SCIENCES ; Flow system ; Fluoride ; Fluoride in groundwater ; Fluorides ; FLUORINE ; GEOCHEMISTRY ; Geology ; Geophysics/Geodesy ; GEOSCIENCES ; GROUND WATER ; Groundwater ; Groundwater flow ; Groundwater movement ; GROUNDWATER RECHARGE ; Health ; HEALTH HAZARDS ; Health risks ; Hydrogen ; HYDROGEN ISOTOPES ; Hydrogeology ; Hydrology ; Hydrology/Water Resources ; Infiltration ; ION EXCHANGE ; IRRIGATION ; Isotopes ; LEACHATES ; LEACHING ; Mixing ; Mixing processes ; Mountains ; Oxygen ; OXYGEN 18 ; pH effects ; PH VALUE ; Pore water ; PRECIPITATION ; PUBLIC HEALTH ; Radiocarbon dating ; Residence time ; Return flow ; River basins ; RIVERS ; SODIUM ; Soil ; Soil water ; SOILS ; SPATIAL DISTRIBUTION ; Tracers ; VAPOR CONDENSATION ; Vapors ; Waste Water Technology ; Water Management ; Water Pollution Control ; Water Quality/Water Pollution
Is Part Of: Hydrogeology journal, 2018-08, Vol.26 (5), p.1527-1546
Description: Elevated fluoride (F) concentration in groundwater is posing a public health risk in the Manas River Basin (MRB), Northwest China. Based on the characterization of regional groundwater flow, 90 groundwater samples from aquifers were analyzed, along with top-soil leachate and pore-water samples from aquitards. Stable oxygen (δ 18 O) and hydrogen isotopes, radiocarbon and hydrochemical analyses of the groundwater and pore-water samples were conducted to trace groundwater hydrological and hydrochemical processes and thereby understand the distribution and migration mechanism of F. The groundwater is recharged by meteoric precipitation through vapor condensation processes in the Tianshan Mountains. The F concentration in groundwater samples from this basin ranged from 0.11 to 48.15 mg/L (mean 2.56 mg/L). In 37 of the 90 groundwater samples, the F concentrations were above the safe level for drinking water. The F concentrations progressively increased with the residence time and well depths in the northwest of the alluvial-fluvial plain, where groundwater is overexploited for agricultural and domestic use. Positive correlations between F and sodium (Na)/calcium (Ca) indicate that the enrichment and migration of F are influenced by cation exchange processes under high-Na and alkaline pH conditions. The relationships between δ 18 O and F and chloride (Cl) concentrations were nonlinear due to leaching and mixing processes. This shows that vertical leaching by irrigation return flow and mixing with pore water are the dominant processes driving the migration of F in the groundwater flow system of MRB, in addition to geochemical processes.
Publisher: Berlin/Heidelberg: Springer Berlin Heidelberg
Language: English
Identifier: ISSN: 1431-2174
EISSN: 1435-0157
DOI: 10.1007/s10040-018-1780-8
Source: ProQuest Central

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Distribution and migration mechanism of fluoride in groundwater in the Manas River Basin, Northwest China

Springer-Verlag GmbH Germany, part of Springer Nature 2018 ;Hydrogeology Journal is a copyright of Springer, (2018). All Rights Reserved. ;ISSN: 1431-2174 ;EISSN: 1435-0157 ;DOI: 10.1007/s10040-018-1780-8

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