ArticleEnvironmental science & technology2015
Dissolved Organic Matter Quality in a Shallow Aquifer of Bangladesh: Implications for Arsenic Mobility.
Article in Environmental science & technology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 188 citations in OpenAlex.
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- Review
- The effect of biogeochemical redox oscillations on arsenic release from legacy mine tailings.Geochimica et cosmochimica acta · 2023Article
- Exogenous-organic-matter-driven mobilization of groundwater arsenic.Environmental science and ecotechnology · 2023Article
- Microbial utilization of recently fixed, plant-derived organic carbon in shallow Holocene and Pleistocene aquifers in Bangladesh.Organic geochemistry · 2023Article
- Arsenic biotransformation and mobilization: the role of bacterial strains and other environmental variables.Environmental science and pollution research international · 2022Review
- Mediation of arsenic mobility by organic matter in mining-impacted sediment from sub-Arctic lakes: implications for environmental monitoring in a warming climate.Environmental earth sciences · 2022Article
- The exposome paradigm to predict environmental health in terms of systemic homeostasis and resource balance based on NMR data science.RSC advances · 2021Review
- Geostatistical model of the spatial distribution of arsenic in groundwaters in Gujarat State, India.Environmental geochemistry and health · 2021Article
- Mechanisms of arsenic contamination associated with hydrochemical characteristics in coastal alluvial aquifers using multivariate statistical technique and hydrogeochemical modeling: a case study in Rayong province, eastern Thailand.Environmental geochemistry and health · 2021Article
- Geographical variations in arsenic contents in rice plants from Latin America and the Iberian Peninsula in relation to soil conditions.Environmental geochemistry and health · 2020Article
- Arsenic and iron speciation and mobilization during phytostabilization of pyritic mine tailings.Geochimica et cosmochimica acta · 2020Article
- Zinc Binding to Fulvic acids: Assessing the Impact of pH, Metal Concentrations and Chemical Properties of Fulvic Acids on the Mechanism and Stability of Formed Soluble Complexes.Molecules (Basel, Switzerland) · 2020Article
- Arsenate removal from underground water by polystyrene-confined hydrated ferric oxide (HFO) nanoparticles:effect of humic acid.Environmental science and pollution research international · 2020Article
- Structural characteristics, analytical techniques and interactions with organic contaminants of dissolved organic matter derived from crop straw: a critical review.RSC advances · 2018Review
- Reversible adsorption and flushing of arsenic in a shallow, Holocene aquifer of Bangladesh.Applied geochemistry : journal of the International Association of Geochemistry and Cosmochemistry · 2017Article
- Manganese redox buffering limits arsenic release from contaminated sediments, Union Lake, New Jersey.Applied geochemistry : journal of the International Association of Geochemistry and Cosmochemistry · 2017Article
- Stimulation of Microbially Mediated Arsenic Release in Bangladesh Aquifers by Young Carbon Indicated by Radiocarbon Analysis of Sedimentary Bacterial Lipids.Environmental science & technology · 2016Article
Corrections and comments
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Authors and funding
9 authors at 6 institutions in 2 countries.
Funding
Abstract
In some high arsenic (As) groundwater systems, correlations are observed between dissolved organic matter (DOM) and As concentrations, but in other systems, such relationships are absent. The role of labile DOM as the main driver of microbial reductive dissolution is not sufficient to explain the variation in DOM-As relationships. Other processes that may also influence As mobility include complexation of As by dissolved humic substances, and competitive sorption and electron shuttling reactions mediated by humics. To evaluate such humic DOM influences, we characterized the optical properties of filtered surface water (n = 10) and groundwater (n = 24) samples spanning an age gradient in Araihazar, Bangladesh. Further, we analyzed large volume fulvic acid (FA) isolates (n = 6) for optical properties, C and N content, and (13)C NMR spectroscopic distribution. Old groundwater (>30 years old) contained primarily sediment-derived DOM and had significantly higher (p < 0.001) dissolved As concentration than groundwater that was younger than 5 years old. Younger groundwater had DOM spectroscopic signatures similar to surface water DOM and characteristic of a sewage pollution influence. Associations between dissolved As, iron (Fe), and FA concentration and fluorescence properties of isolated FA in this field study suggest that aromatic, terrestrially derived FAs promote As-Fe-FA complexation reactions that may enhance As mobility.
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Registered trials
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