Influence of irrigation practices on arsenic mobilization: Evidence from isotope composition and Cl/Br ratios in groundwater from Datong Basin, northern China

Xie, Xianjun; Wang, Yanxin; Su, Chunli; Li, Junxia; Li, Mengdi

doi:10.1016/j.jhydrol.2011.12.017

Cited by 86 publications

(31 citation statements)

References 45 publications

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“…Unfortunately, in many areas of the above countries, As-rich groundwater is commonly used for irrigation, which results in a transfer of water soluble As from groundwater into soils, and ultimately increases As levels in soils (Xie et al, 2012;Polizzotto et al, 2013;Tong et al, 2014). It is known that mobile and bioavailable fractions of As in soils will move into crops via soil-plant transfer, and finally cause harm to human health through food chains (Williams et al, 2005;Karak et al, 2011;Wang et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Changes of arsenic fractionation and bioaccessibility in wastewater-irrigated soils as a function of aging: Influence of redox condition and arsenic load

et al. 2016

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Section: Introductionmentioning

confidence: 99%

Changes of arsenic fractionation and bioaccessibility in wastewater-irrigated soils as a function of aging: Influence of redox condition and arsenic load

et al. 2016

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“…[6][7][8][9][10][11]. Groundwater As concentrations span three orders of magnitude over distances from tens of meters to kilometers [6,[12][13][14][15]. The causes of the lateral heterogeneity in As concentration are diverse, including recharge of human-derived dissolved organic carbon (DOC) [4,16], distribution of natural organic matter [17,18], distribution of surface geologic conditions [8,[19][20][21], surface water-groundwater interaction [7], distribution of paleaosol layers [22][23][24], groundwater flushing [26,27], and recharge rate [20,25].…”

mentioning

confidence: 99%

Spatial and temporal evolutions of groundwater arsenic approximately along the flow path in the Hetao basin, Inner Mongolia

et al. 2013

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Patchy distribution of high As groundwater has normally been observed in As-affected areas. Spatial and temporal evolutions help in better understanding mechanisms of As mobilization and in developing effective strategies for ensuring drinking water safety. Four multilevel samplers were installed approximately along the groundwater flow path to investigate spatial and temporal variations in groundwater As in the Hetao basin, Inner Mongolia. Both water chemistry and groundwater level were monitored for about two years. Groundwater As concentration generally showed increasing trends, and Eh values showed decreasing trends along the flow path, indicating that As was mobilized via reductive dissolution of Fe oxides. However, in evaporation discharge area, shallow groundwater As was generally lower than those upstream and downstream. In addition to evaporation, siderite and pyrite precipitations controlled groundwater As concentrations. The negative correlations between As concentration and SI pyrite (or SI siderite ) implied that siderite and pyrite precipitations would scavenge groundwater As and lower As concentration. Temporal variation showed different trends in different locations. It may reflect replenishment of high/low As groundwater for the increase/decrease in As concentrations, resulting from water level fluctuation. The increase trends in groundwater As concentrations at depth around 15 m in the discharge areas would result from the increase in the recharge of underlying groundwater (20 m) with high As concentration due to enhanced evaporation in the seasons with high water levels. The investigation suggested that monitoring of groundwater As should be routinely carried out to ensure the drinking water safety in the As-affected areas.aquifer, water-rock interaction, hydrogeochemistry, As species, evaporation High As groundwater has posed a significant health impact on thousands of millions of people [1], which has received much concern from scientific community and management agencies [2][3][4][5]. Many investigations have shown that groundwater As is highly variable at both local and regional scale in reducing aquifers from river deltas (including Red River delta, Mekong delta, Ganges delta, Yellow river delta, Pearl River delta, etc.) [4,5] and inland basins (including the Hetao basin, the Datong basin, the Yinchuan basin, the west Jilin basin, and the Zhunger basin, etc.) [6][7][8][9][10][11]. Groundwater As concentrations span three orders of magnitude over distances from tens of meters to kilometers [6,[12][13][14][15]. The causes of the lateral heterogeneity in As concentration are diverse, including recharge of human-derived dissolved organic carbon (DOC) [4,16], distribution of natural organic matter [17,18], distribution of surface geologic conditions [8,[19][20][21], surface water-groundwater interaction [7], distribution of paleaosol layers [22][23][24], groundwater flushing [26,27], and recharge rate [20,25]. The patchy distribution of groundwater As makes it difficult to get safe drinking wa...

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“…Significantly, the lesser slope regression value for lesser arsenic groundwater samples is inferred as noted by Xie et al (2012). In this case, we plotted As versus 18 O content in order to delineate the anthropogenic sources from the natural sources.…”

Section: O and Its Relation To Arsenicmentioning

confidence: 92%

“…A clear increasing trend of As concentration with the enrichment of stable isotope in the charnockites, marine alluvium formations is noticed. It suggests that the percolation of irrigation return flow water should play a significant role to increase the mobilization of arsenic in groundwater (Xie et al 2012). …”

Section: O and Its Relation To Arsenicmentioning

confidence: 99%

A study on the arsenic concentration in groundwater of a coastal aquifer in south-east India: an integrated approach

Chidambaram

Thilagavathi

Thivya

et al. 2016

Environ Dev Sustain

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The occurrence of arsenic in drinking water and its detrimental effects have drawn much attention in recent years. Several studies have been conducted in the deltaic plains of River Ganga, NE part of the India, and in other countries, but no systematic study was conducted in South India on occurrence of arsenic in groundwater. The main aim of this study is to determine the level of arsenic in groundwater and to understand the relation with other geochemical parameters of groundwater in the south-eastern coastal aquifer at Kalpakkam region, India. This region is represented by three different lithologies, viz. charnockites, flood plain alluvium and marine alluvium. Twenty-nine representative samples of groundwater were collected and analysed for major ions, metals and isotopes such as 2 H and 18 O. In addition, geophysical method was also attempted to understand the subsurface condition. The spatial variation in arsenic (As) indicates that higher concentration was observed around the landfill sites and irrigated regions, which was supported by geochemical, statistical and isotopic inferences. The variation in the As with depth, lithology and sources has been clearly brought out. Though the values of As does not exceed the drinking water permissible limit (10 mg/l), it has reached a near permissible level of 8.7 ppb. Hence, it is essential to understand the geochemical behaviour of As for a proper future management of the water resource in the study area.

show abstract

Influence of irrigation practices on arsenic mobilization: Evidence from isotope composition and Cl/Br ratios in groundwater from Datong Basin, northern China

Cited by 86 publications

References 45 publications

Changes of arsenic fractionation and bioaccessibility in wastewater-irrigated soils as a function of aging: Influence of redox condition and arsenic load

Changes of arsenic fractionation and bioaccessibility in wastewater-irrigated soils as a function of aging: Influence of redox condition and arsenic load

Spatial and temporal evolutions of groundwater arsenic approximately along the flow path in the Hetao basin, Inner Mongolia

A study on the arsenic concentration in groundwater of a coastal aquifer in south-east India: an integrated approach

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