The provenance of deep groundwater and its relation to arsenic distribution in the northwestern Hetao Basin, Inner Mongolia

被引:8
|
作者
Liu, Shuai [1 ,2 ]
Guo, Huaming [1 ,2 ]
Lu, Hai [3 ]
Zhang, Zhuo [2 ]
Zhao, Weiguang [2 ]
机构
[1] China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China
[2] China Univ Geosci Beijing, Sch Water Resources & Environm, Beijing 100083, Peoples R China
[3] Natl Inst Metrol, Beijing 100013, Peoples R China
基金
中国国家自然科学基金;
关键词
Deep groundwater; High As; Sources; Sr-87; Sr-86; Hydrogeological processes; STRONTIUM ISOTOPES; SHALLOW AQUIFERS; SR-87/SR-86; RATIOS; ORGANIC-MATTER; TRACE-ELEMENTS; CHINA EVIDENCE; WATER SOURCES; FLOW PATHS; MOBILIZATION; SR;
D O I
10.1007/s10653-019-00433-0
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
High-arsenic (As) groundwater has been widely found throughout the world. The source of groundwater would determine spatial distribution of groundwater As. In order to trace the source of high-As deep groundwater (DGW, depths > 50 m), groundwater, sediments, and local bedrock samples were taken to investigate chemical and isotopic compositions in the Hetao Basin, China. Results showed that Sr-87/Sr-86 in DGW gradually decreased with the increase in As concentrations along the approximate flow path. In recharge-oxic zone (Zone I), DGW was mainly recharged by fissure water, influenced mostly by weathering of phyllite bedrock and meta-basalt. In groundwater flow-moderate reducing zone (Zone II), DGW was mainly related to incongruent dissolution of feldspar. However, in groundwater flow-reducing zone (Zone III), DGW was partly recharged from shallow groundwater (SGW) with depths < 50 m. The mixing contributions of SGW to DGW in Zone III mostly exceeded 80% during groundwater irrigation season. In Zone I, DGW As concentrations were mostly lower than 50 mu g/L due to oxic conditions. In Zone II, the weakly alkaline pH and the decreasing Ca/Na resulting from incongruent dissolution of feldspar caused As desorption, which was the major contribution to As mobilization (As mostly > 200 mu g/L). In Zone III, the recharge of SGW introduced labile organic matter to support reduction of Fe(III) oxyhydroxides/oxides and predominantly led to As release into groundwater (As > 300 mu g/L). This study has provided insights into the source of high-As DGW and the effect of SGW mixing on As mobilization.
引用
收藏
页码:1429 / 1451
页数:23
相关论文
共 50 条
  • [32] Arsenic contamination of the soil-wheat system irrigated with high arsenic groundwater in the Hetao Basin, Inner Mongolia, China
    Tong, Junting
    Guo, Huaming
    Wei, Chao
    SCIENCE OF THE TOTAL ENVIRONMENT, 2014, 496 : 479 - 487
  • [33] Hydrogeochemical zonation and its implication for arsenic mobilization in deep groundwaters near alluvial fans in the Hetao Basin, Inner Mongolia
    Jia, Yongfeng
    Guo, Huaming
    Jiang, Yuxiao
    Wu, Yang
    Zhou, Yinzhu
    JOURNAL OF HYDROLOGY, 2014, 518 : 410 - 420
  • [34] Biomarkers of arsenic exposure in arsenic-affected areas of the Hetao Basin, Inner Mongolia
    Liu, Ting
    Guo, Huaming
    Xiu, Wei
    Wei, Chao
    Li, Xiaomeng
    Di, Zhen
    Song, Wei
    SCIENCE OF THE TOTAL ENVIRONMENT, 2017, 609 : 524 - 534
  • [35] Environmental geochemistry of high arsenic groundwater at western Hetao plain, Inner Mongolia
    He J.
    Ma T.
    Deng Y.
    Yang H.
    Wang Y.
    Frontiers of Earth Science in China, 2009, 3 (1): : 63 - 72
  • [36] Erratum to: Arsenic movement and traces in the groundwater from the Hetao Area, Inner Mongolia
    Hui Zhang
    Environmental Earth Sciences, 2013, 69 : 2127 - 2128
  • [37] Hydrogeochemistry of high arsenic groundwater from Hangjinhouqi of Hetao Plain, inner Mongolia
    Deng, Y.
    Wang, Y.
    Ma, T.
    WATER-ROCK INTERACTION, VOLS 1 AND 2, PROCEEDINGS, 2007, : 1037 - 1041
  • [38] Pathways of coupled arsenic and iron cycling in high arsenic groundwater of the Hetao basin, Inner Mongolia, China: An iron isotope approach
    Guo, Huaming
    Liu, Chen
    Lu, Hai
    Wanty, R. B.
    Wang, Jun
    Zhou, Yinzhu
    GEOCHIMICA ET COSMOCHIMICA ACTA, 2013, 112 : 130 - 145
  • [39] Contrasting distributions of groundwater arsenic and uranium in the western Hetao basin, Inner Mongolia: Implication for origins and fate controls
    Guo, Huaming
    Jia, Yongfeng
    Wanty, Richard B.
    Jiang, Yuxiao
    Zhao, Weiguang
    Xiu, Wei
    Shen, Jiaxing
    Li, Yuan
    Cao, Yongsheng
    Wu, Yang
    Zhang, Di
    Wei, Chao
    Zhang, Yilong
    Cao, Wengeng
    Foster, Andrea
    SCIENCE OF THE TOTAL ENVIRONMENT, 2016, 541 : 1172 - 1190
  • [40] Spatial variation in arsenic and fluoride concentrations of shallow groundwater from the town of Shahai in the Hetao basin, Inner Mongolia
    Guo, Huaming
    Zhang, Yang
    Xing, Lina
    Jia, Yongfeng
    APPLIED GEOCHEMISTRY, 2012, 27 (11) : 2187 - 2196