Distribution and formation of high-fluorine groundwater in China
- Zhengding Institute of Hydrogeology and Engineering Geology (China)
Groundwater which contains more than 1.0 mg/l fluorine is mainly distributed in shallow aquifers of unconsolidated deposits in arid and semiarid areas, deep aquifers of unconsolidated deposits in semiarid areas, as well as in bedrock hot springs of mountainous areas and aquifers of fluorite-mine areas. The formation of such groundwater is controlled by regional climate, groundwater seepage, and the hydrogeochemical environment. The physicochemical properties of soil in the aeration zone play an important role in fluorine concentration in shallow groundwater. In coastal plain areas, where groundwater is mainly recharged and discharged vertically, the grain size of soil in the aeration zone directly influences the amount of fluorine transferred from the solid medium into water, and the chemical constituents of this soil control the chemical characteristics of the shallow groundwater, consequently influencing the concentration of fluorine in water. High-fluorine groundwater exceeding the sanitary standard has an obvious zonality in regional distribution in China. Currently, there are roughly 50 million people in China who have consumed water which exceeds standards. in high-fluorine groundwater areas different degrees of endemic fluorine-poisoning often arise, affecting human health seriously. 6 refs., 5 figs., 6 tabs.
- OSTI ID:
- 5804568
- Journal Information:
- Environmental Geology and Water Sciences; (USA), Journal Name: Environmental Geology and Water Sciences; (USA) Vol. 12:1; ISSN 0177-5146; ISSN EGWSE
- Country of Publication:
- United States
- Language:
- English
Similar Records
Installation-restoration program. Phase II. Confirmation/quantification. Stage 1. Final report, October 1984-September 1985
Hydrochemical and isotopic characteristics of groundwater in the northeastern Tennger Desert, northern China
Related Subjects
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
AQUIFERS
ARID LANDS
ASIA
CHINA
CLIMATES
CONTAMINATION
ECOLOGICAL CONCENTRATION
FLUORIDES
FLUORINE COMPOUNDS
GROUND WATER
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
MONITORING
OXYGEN COMPOUNDS
POLLUTION
SOILS
STANDARDS
WATER
WATER POLLUTION