Abstract
High As groundwater has widely been found in the inland basins of China. Little is known about distribution and mobilization mechanisms of high As groundwater in the Songnen basin, where groundwater is the major source for drinking and irrigation. Eighty-seven groundwater samples, three surface water samples and sixty-three sediment samples were taken from the southwest of the Songnen basin, in order to investigate spatial distribution and constrains of groundwater As. Results showed that high As groundwater was generally of Na–Mg/Ca–HCO{sub 3} type, which had relatively low Eh values and neutral-weakly alkaline pH. High As groundwater was characterized by low concentrations of NO{sub 3}{sup −} and SO{sub 4}{sup 2−}, and high concentrations of Fe, Mn, and H{sub 2}S. Around 65.5% of sampled shallow groundwater and 96% of sampled deep groundwater had As concentrations greater than 10 μg/L. Sediments had higher total As contents and higher Fe/Mn oxide-bound As contents in high As groundwater area than in the low As groundwater area. Distribution of groundwater As was dependent upon hydrogeologic settings, redox potential, microbial degradation of organic carbon, and precipitation of pyrite, siderite, and calcite. Along the groundwater flow path, As concentration showed an increasing trend. High As groundwater was mainly distributed
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Guo, Huaming;
[1]
MOE Key Laboratory of Groundwater Circulation and Environment Evolution and School of Water Resources and Environment, China University of Geosciences, Beijing 100083 (China)];
Zhang, Di;
[1]
MOE Key Laboratory of Groundwater Circulation and Environment Evolution and School of Water Resources and Environment, China University of Geosciences, Beijing 100083 (China)];
Wen, Dongguang;
[2]
Wu, Yang;
Ni, Ping;
Jiang, Yuxiao;
Guo, Qi;
Li, Fulan;
Zheng, Hao;
Zhou, Yinzhu
[3]
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing 100083 (China)
- China Geological Survey, 24 Huangsi Dajie, Xicheng District, Beijing 100037 (China)
- MOE Key Laboratory of Groundwater Circulation and Environment Evolution and School of Water Resources and Environment, China University of Geosciences, Beijing 100083 (China)
Citation Formats
Guo, Huaming, MOE Key Laboratory of Groundwater Circulation and Environment Evolution and School of Water Resources and Environment, China University of Geosciences, Beijing 100083 (China)], Zhang, Di, MOE Key Laboratory of Groundwater Circulation and Environment Evolution and School of Water Resources and Environment, China University of Geosciences, Beijing 100083 (China)], Wen, Dongguang, Wu, Yang, Ni, Ping, Jiang, Yuxiao, Guo, Qi, Li, Fulan, Zheng, Hao, and Zhou, Yinzhu.
Arsenic mobilization in aquifers of the southwest Songnen basin, P.R. China: Evidences from chemical and isotopic characteristics.
Netherlands: N. p.,
2014.
Web.
doi:10.1016/J.SCITOTENV.2014.05.050.
Guo, Huaming, MOE Key Laboratory of Groundwater Circulation and Environment Evolution and School of Water Resources and Environment, China University of Geosciences, Beijing 100083 (China)], Zhang, Di, MOE Key Laboratory of Groundwater Circulation and Environment Evolution and School of Water Resources and Environment, China University of Geosciences, Beijing 100083 (China)], Wen, Dongguang, Wu, Yang, Ni, Ping, Jiang, Yuxiao, Guo, Qi, Li, Fulan, Zheng, Hao, & Zhou, Yinzhu.
Arsenic mobilization in aquifers of the southwest Songnen basin, P.R. China: Evidences from chemical and isotopic characteristics.
Netherlands.
https://doi.org/10.1016/J.SCITOTENV.2014.05.050
Guo, Huaming, MOE Key Laboratory of Groundwater Circulation and Environment Evolution and School of Water Resources and Environment, China University of Geosciences, Beijing 100083 (China)], Zhang, Di, MOE Key Laboratory of Groundwater Circulation and Environment Evolution and School of Water Resources and Environment, China University of Geosciences, Beijing 100083 (China)], Wen, Dongguang, Wu, Yang, Ni, Ping, Jiang, Yuxiao, Guo, Qi, Li, Fulan, Zheng, Hao, and Zhou, Yinzhu.
2014.
"Arsenic mobilization in aquifers of the southwest Songnen basin, P.R. China: Evidences from chemical and isotopic characteristics."
Netherlands.
https://doi.org/10.1016/J.SCITOTENV.2014.05.050.
@misc{etde_22443000,
title = {Arsenic mobilization in aquifers of the southwest Songnen basin, P.R. China: Evidences from chemical and isotopic characteristics}
author = {Guo, Huaming, MOE Key Laboratory of Groundwater Circulation and Environment Evolution and School of Water Resources and Environment, China University of Geosciences, Beijing 100083 (China)], Zhang, Di, MOE Key Laboratory of Groundwater Circulation and Environment Evolution and School of Water Resources and Environment, China University of Geosciences, Beijing 100083 (China)], Wen, Dongguang, Wu, Yang, Ni, Ping, Jiang, Yuxiao, Guo, Qi, Li, Fulan, Zheng, Hao, and Zhou, Yinzhu}
abstractNote = {High As groundwater has widely been found in the inland basins of China. Little is known about distribution and mobilization mechanisms of high As groundwater in the Songnen basin, where groundwater is the major source for drinking and irrigation. Eighty-seven groundwater samples, three surface water samples and sixty-three sediment samples were taken from the southwest of the Songnen basin, in order to investigate spatial distribution and constrains of groundwater As. Results showed that high As groundwater was generally of Na–Mg/Ca–HCO{sub 3} type, which had relatively low Eh values and neutral-weakly alkaline pH. High As groundwater was characterized by low concentrations of NO{sub 3}{sup −} and SO{sub 4}{sup 2−}, and high concentrations of Fe, Mn, and H{sub 2}S. Around 65.5% of sampled shallow groundwater and 96% of sampled deep groundwater had As concentrations greater than 10 μg/L. Sediments had higher total As contents and higher Fe/Mn oxide-bound As contents in high As groundwater area than in the low As groundwater area. Distribution of groundwater As was dependent upon hydrogeologic settings, redox potential, microbial degradation of organic carbon, and precipitation of pyrite, siderite, and calcite. Along the groundwater flow path, As concentration showed an increasing trend. High As groundwater was mainly distributed in the low-lying areas. Reducing conditions were the major causes for As mobilization in the aquifers, which led to more As released from the sediments with higher contents of Fe/Mn oxide-bound As in higher As groundwater area. Results of {sup 13}C{sub DOC} and {sup 13}C{sub DIC} showed that dissimilatory Fe(III) reduction coupled with microbial degradation of dissolved organic carbon would be related to As mobilization in the aquifers. Although both Fe and As were released during these redox processes, pyrite, siderite and calcite precipitation would be the sink of dissolved As, which resulted in weak correlation between dissolved Fe and As. - Highlights: • More than 86% groundwater had As concentration > 10 μg/L in study area. • High As groundwater was observed in both shallow and deep aquifers. • Distribution of groundwater As was controlled by hydrogeologic and redox conditions. • Microbial degradation of DOC was evidenced by {sup 13}C isotope of DOC and DIC. • Arsenic was released during microbially-mediated reduction of Fe oxides and As(V)}
doi = {10.1016/J.SCITOTENV.2014.05.050}
journal = []
issue = {Complete}
volume = {490}
journal type = {AC}
place = {Netherlands}
year = {2014}
month = {Aug}
}
title = {Arsenic mobilization in aquifers of the southwest Songnen basin, P.R. China: Evidences from chemical and isotopic characteristics}
author = {Guo, Huaming, MOE Key Laboratory of Groundwater Circulation and Environment Evolution and School of Water Resources and Environment, China University of Geosciences, Beijing 100083 (China)], Zhang, Di, MOE Key Laboratory of Groundwater Circulation and Environment Evolution and School of Water Resources and Environment, China University of Geosciences, Beijing 100083 (China)], Wen, Dongguang, Wu, Yang, Ni, Ping, Jiang, Yuxiao, Guo, Qi, Li, Fulan, Zheng, Hao, and Zhou, Yinzhu}
abstractNote = {High As groundwater has widely been found in the inland basins of China. Little is known about distribution and mobilization mechanisms of high As groundwater in the Songnen basin, where groundwater is the major source for drinking and irrigation. Eighty-seven groundwater samples, three surface water samples and sixty-three sediment samples were taken from the southwest of the Songnen basin, in order to investigate spatial distribution and constrains of groundwater As. Results showed that high As groundwater was generally of Na–Mg/Ca–HCO{sub 3} type, which had relatively low Eh values and neutral-weakly alkaline pH. High As groundwater was characterized by low concentrations of NO{sub 3}{sup −} and SO{sub 4}{sup 2−}, and high concentrations of Fe, Mn, and H{sub 2}S. Around 65.5% of sampled shallow groundwater and 96% of sampled deep groundwater had As concentrations greater than 10 μg/L. Sediments had higher total As contents and higher Fe/Mn oxide-bound As contents in high As groundwater area than in the low As groundwater area. Distribution of groundwater As was dependent upon hydrogeologic settings, redox potential, microbial degradation of organic carbon, and precipitation of pyrite, siderite, and calcite. Along the groundwater flow path, As concentration showed an increasing trend. High As groundwater was mainly distributed in the low-lying areas. Reducing conditions were the major causes for As mobilization in the aquifers, which led to more As released from the sediments with higher contents of Fe/Mn oxide-bound As in higher As groundwater area. Results of {sup 13}C{sub DOC} and {sup 13}C{sub DIC} showed that dissimilatory Fe(III) reduction coupled with microbial degradation of dissolved organic carbon would be related to As mobilization in the aquifers. Although both Fe and As were released during these redox processes, pyrite, siderite and calcite precipitation would be the sink of dissolved As, which resulted in weak correlation between dissolved Fe and As. - Highlights: • More than 86% groundwater had As concentration > 10 μg/L in study area. • High As groundwater was observed in both shallow and deep aquifers. • Distribution of groundwater As was controlled by hydrogeologic and redox conditions. • Microbial degradation of DOC was evidenced by {sup 13}C isotope of DOC and DIC. • Arsenic was released during microbially-mediated reduction of Fe oxides and As(V)}
doi = {10.1016/J.SCITOTENV.2014.05.050}
journal = []
issue = {Complete}
volume = {490}
journal type = {AC}
place = {Netherlands}
year = {2014}
month = {Aug}
}