Relations of As concentrations among groundwater, soil, and bedrock in Chungnam, Korea: Implications for As mobilization in groundwater according to the As-hosting mineral change

► Relations among As levels in rocks, soils, and groundwater are investigated. ► Shallow groundwaters are low in As level while the soil As contamination is serious. ► Weathering of arsenopyrite-bearing rock spreads the soil As contamination. ► Adsorption onto Fe (hydr)oxides in soil at low pH cause...

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Veröffentlicht in:	Journal of hazardous materials 2012-01, Vol.199 (15), p.25-35
Hauptverfasser:	Kim, Kangjoo, Kim, Seok-Hwi, Jeong, Gi Young, Kim, Rak-Hyeon
Format:	Artikel
Sprache:	eng
Schlagworte:	arsenic Arsenic - analysis Arsenic mobilization Arsenopyrite As-hosting mineral Bedrock Correlation disturbed soils Drinking water Fe-(hydr)oxides Groundwater Groundwater - chemistry Iron iron hydroxides iron oxides land use change Minerals Minerals - analysis Oxidation oxides Pedogenetic process Republic of Korea Soil (material) Soil Pollutants - analysis Water Pollutants, Chemical - analysis weathering
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Beschreibung
Zusammenfassung:	► Relations among As levels in rocks, soils, and groundwater are investigated. ► Shallow groundwaters are low in As level while the soil As contamination is serious. ► Weathering of arsenopyrite-bearing rock spreads the soil As contamination. ► Adsorption onto Fe (hydr)oxides in soil at low pH caused the low As concentration. Arsenic (As) concentrations and As-bearing minerals in bedrock and soil, and their relations with groundwater concentrations were investigated in a small agricultural area of Korea. The As concentration of the bedrock shows a wide variation (
ISSN:	0304-3894 1873-3336
DOI:	10.1016/j.jhazmat.2011.10.037