Biogeochemical and reactive transport modeling of arsenic in groundwaters from the Mississippi River delta plain: An analog for the As-affected aquifers of South and Southeast Asia

Johannesson, Karen H.; Yang, Ningfang; Trahan, Alexandra S.; Telfeyan, Katherine; Mohajerin, T. Jade; Adebayo, Segun; Akintomide, Omolola A.; Chevis, Darren A.; Datta, Saugata; White, Christopher D.

doi:10.1016/j.gca.2019.07.032

Cited by 30 publications

(8 citation statements)

References 148 publications

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“…A link between biogeochemical processes and As mobilisation from sediments to groundwater, implying diverse mechanisms and especially iron and sulphur cycles, was evidenced in several other sites. The mechanism most often at the origin of As release is the biological reduction of Fe oxides (Stuben et al, 2003;Zheng et al, 2004;Nath et al, 2009;Erickson et al, 2016;Ziegler et al, 2017;Johannesson et al, 2019). The confined groundwater of Marcilly-en-Gault contains dissolved Fe, the analysis of core materials indicated the presence of FeIII in the Asrich levels, and our slurry incubation experiment showed As and Fe release during anaerobic periods (Figure 5), and correlation between these two parameters (Supplementary Figure 7).…”

Section: As Release Mechanisms Implying Fe and S Cyclesmentioning

confidence: 51%

“…Several studies reported the mobilisation of As from underground sediments fuelled by organic pollutants plumes (Erickson et al, 2016;Ziegler et al, 2017). However, the natural organic matter present in sediments, found both in active and ancient floodplains, also plays the role of electron donor in reactions that solubilise As (Sahu and Saha, 2015;Johannesson et al, 2019). The reductive dissolution of As-bearing FeIII oxides minerals was evidenced as one of the main bio-processes able to release As from sediments to groundwater (Welch et al, 2000;Nath et al, 2009;Duan et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Biogeochemical behaviour of geogenic As in a confined aquifer of the Sologne region, France

Battaglia-Brunet

Naveau

Cary³

et al. 2022

Chemosphere

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Section: As Release Mechanisms Implying Fe and S Cyclesmentioning

confidence: 51%

Section: Introductionmentioning

confidence: 99%

Biogeochemical behaviour of geogenic As in a confined aquifer of the Sologne region, France

Battaglia-Brunet

Naveau

Cary³

et al. 2022

Chemosphere

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“…in which, ƒ is the fraction of sediment bounded Pb released to support a dissolved Pb concentration in the pore waters, [Pb] diss is the dissolved Pb concentration in µg/kg mobilized from the sediments, M is total Pb content (i.e., Pb total ) of the diverted sediment in mg/kg, D sed is the specific gravity of the sediment grains, and Ø is the porosity of the sediments (see also [118]). For the MRSS sediment, the total Pb content, M, of MRSS is 50.9 mg/kg (Table 2).…”

Section: Estimating Pore Water Trace Metal Concentrations In Newly Constructed Marshlandsmentioning

confidence: 99%

Investigating the Potential Impact of Louisiana Coastal Restoration on the Trace Metal Geochemistry of Constructed Marshlands

et al. 2020

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Coastal restoration through diversion of suspended sediments from the Lower Mississippi River (LMR) into hydrologically isolated marshlands of Mid-Barataria Bay and Mid-Breton Sounds in southern Louisiana has the potential to mobilize lead (Pb), and other trace elements. We investigate the potential impact(s) of the diversion on marsh porewater through analysis of modern riverbank and suspended sediments, compared to sediments from pre-industrial deltaic deposits of LMR. Sequential extraction methods were used to evaluate Pb, cobalt (Co), copper (Cu), nickel (Ni), and zinc (Zn) in the sediments. Our results show that metal contents are higher (e.g., 8- to 10-fold for Pb) in the modern sediments relative to pre-industrial deposits. Also, the reducible fraction, presumably iron/manganese (Fe/Mn) oxides/oxyhydroxides, is the chief reservoir of environmentally available metals. The substantially higher trace metal contents of the modern relative to pre-industrial sediments suggest that the modern sediments contain a sizeable amount of anthropogenic contributions. Furthermore, the concentration of the trace metals in the reducible fraction suggests bioavailability to marsh organisms upon reductive dissolution within the planned, constructed coastal marshes. Still, additional sediment samples from the marshlands during the diversion implementation phase will be necessary to support the preliminary findings in this contribution as it affects coastal marshes and vital local fisheries.

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“…As and Mn constitute the majority of heavy metal pollutants in groundwater and have received ample attention in research over the past few decades in many countries around the world [ 5 , 6 , 7 , 8 ]. They have been intensively studied by scholars from Bangladesh, India, Pakistan, Vietnam, and China [ 9 , 10 ]. Many scholars believe that exposure to As causes critical health problems such as skin and bladder cancers [ 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Environmental and Health Risks Posed by Heavy Metal Contamination of Groundwater in the Sunan Coal Mine, China

Wang

Tao

Su³

et al. 2022

Toxics

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Groundwater is often used for domestic and irrigation purposes, even in mining areas. Mine drainage, rainfall, and infiltration cause heavy metal enrichment, adversely affecting the groundwater and harming human health. In this study, water samples (October 2021) in the Suzhou southern coal mining area were analyzed for the heavy metals As, Cr, Cu, Fe, Mn, Pb, and Zn to determine potential effects of heavy metal contamination on environmental quality and human health. It was found that 22% and 31% of the sampling sites had “excellent” and “good” water quality, respectively. Excessive concentrations of Fe and Mn were detected in 47% and 72% of the samples, respectively. The non-carcinogenic health risk values of As, Cr, Cu, Fe, Mn, Pb, and Zn were below the negligible levels of health risk set by various environmental agencies. Content ranking was as follows: Fe > Mn > Cr > Cu > Pb > Zn > As, with Fe accounting for 43%. All sampling points exceeded the maximum acceptable level of Cr recommended by the agencies. Chromium, the major carcinogenic factor in the study area, contributed to 95.45% of the total health risk. Therefore, the authorities in this region must closely monitor three heavy metal elements—Fe, Mn, and Cr.

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Biogeochemical and reactive transport modeling of arsenic in groundwaters from the Mississippi River delta plain: An analog for the As-affected aquifers of South and Southeast Asia

Cited by 30 publications

References 148 publications

Biogeochemical behaviour of geogenic As in a confined aquifer of the Sologne region, France

Biogeochemical behaviour of geogenic As in a confined aquifer of the Sologne region, France

Investigating the Potential Impact of Louisiana Coastal Restoration on the Trace Metal Geochemistry of Constructed Marshlands

Environmental and Health Risks Posed by Heavy Metal Contamination of Groundwater in the Sunan Coal Mine, China

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