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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1007/s10646-014-1310-y
|2 doi
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|a pubmed24n0804.xml
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|e rakwb
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|a eng
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|a Li, M D
|e verfasserin
|4 aut
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|a δ34S and δ18O of dissolved sulfate as biotic tracer of biogeochemical influences on arsenic mobilization in groundwater in the Hetao Plain, Inner Mongolia, China
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 30.03.2015
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|a Date Revised 21.10.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Environmental isotopology of sulfur and oxygen of dissolved sulfate in groundwater was conducted in the Hetao Plain, northwestern China, aiming to better understand the processes controlling arsenic mobilization in arsenic-rich aqueous systems. A total of 22 groundwater samples were collected from domestic wells in the Hetao Plain. Arsenic concentrations ranged from 11.0 to 388 μg/L. The δ(34)S-SO4 and δ(18)O-SO4 values of dissolved sulfate covered a range from +1.48 to +22.4‰ and +8.17‰ to +14.8‰ in groundwater, respectively. The wide range of δ(34)S-SO4 values reflected either an input of different sources of sulfate, such as gypsum dissolution and fertilizer application, or a modification from biogeochemical process of bacterial sulfate reduction. The positive correlation between δ(34)S-SO4 and arsenic concentrations suggested that bacteria mediated processes played an important role in the mobilization of arsenic. The δ(18)O-SO4 values correlated non-linearly with δ(34)S-SO4, but within a relatively narrow range (+8.17 to +14.8‰), implying that complexities inherent in the sulfate-oxygen (O-SO4(2-)) origins, for instance, water-derived oxygen (O-H2O), molecular oxygen (O-O2) and isotope exchanging with dissolved oxides, are accounted for oxygen isotope composition of dissolved sulfate in groundwater in the Hetao Plain
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Oxygen Isotopes
|2 NLM
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|a Sulfates
|2 NLM
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|a Sulfur Isotopes
|2 NLM
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| 650 |
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|a Water Pollutants, Chemical
|2 NLM
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|a Arsenic
|2 NLM
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|a N712M78A8G
|2 NLM
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|a Wang, Y X
|e verfasserin
|4 aut
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|a Li, P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Deng, Y M
|e verfasserin
|4 aut
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| 700 |
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|a Xie, X J
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Ecotoxicology (London, England)
|d 1992
|g 23(2014), 10 vom: 23. Dez., Seite 1958-68
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|x 1573-3017
|7 nnns
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|g volume:23
|g year:2014
|g number:10
|g day:23
|g month:12
|g pages:1958-68
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|u http://dx.doi.org/10.1007/s10646-014-1310-y
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