NDLI: Arsenic contamination of groundwater and agricultural soil irrigated with the groundwater in Mekong Delta, Vietnam

Content Provider	Springer Nature Link
Author	Huang, Yi Miyauchi, Keisuke Endo, Ginro Don, Le Dinh Manh, Nguyen Cong Inoue, Chihiro
Copyright Year	2016
Abstract	Groundwater is widely used for irrigated farming. In this study, arsenic (As) contamination in groundwater and surface soil of agricultural fields irrigated with groundwater in Mekong Delta in Vietnam was investigated. Total As concentration and arsenite-As (As(III)) concentrations of 16 groundwater samples and total As concentration of 16 surface soil samples from agricultural fields where the groundwater was used for irrigation were measured. Mekong river water samples and surface soil samples from agricultural fields where the Mekong river water was used for irrigation were also analyzed as reference soil samples. As concentration of all measured groundwater samples were higher than the Vietnamese standard for As concentration of irrigation water (50 μg/L), and As(III) was the most abundant form of As in the groundwater. Total As concentrations of 10 of 16 soil samples exceeded the Vietnamese standard for As concentration of soil (12 mg/kg) and a positive correlation between As concentrations of groundwater samples and of soil samples was observed. Water-soluble and phosphate-exchangeable As fractions in the soil samples were more than 16 % of total soil As content. These data suggest that irrigation with groundwater in Mekong Delta area increases the As concentration of agricultural field soil, and that countermeasure technology to remove As from the contaminated groundwater should be needed to keep sustainable irrigation agriculture in Mekong Delta area.
Starting Page	1
Ending Page	7
Page Count	7
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	75
Issue Number	9
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-04-25
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Arsenic contamination Groundwater Agricultural field soil Mekong Delta Irrigation Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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