Organo-mercury species in a polluted agricultural flood plain: Combining speciation methods and polymerase chain reaction to investigate pathways of contamination

Gfeller, Lorenz; Caplette, Jaime N.; Frossard, Aline; Mestrot, Adrien

doi:10.1016/j.envpol.2022.119854

Cited by 4 publications

(3 citation statements)

References 60 publications

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“…22 The second paper describes the procedures used to distinguish between deposited and in situ formed MeHg in soils in a Swiss valley. 86 Two separate procedures, iHg spiking and double-spike (isotopically enriched iHg and MeHg) ID-HPLC-ICP-MS were used to determine and correct for artificial Hg methylation in a MeHg-selective acid-leaching/organic solvent extraction procedure (6 mol L −1 HCl, DCM, l -cysteine). The HPLC separations were performed on a C18 column with a mobile phase consisting of 0.1% (w/v) l -cysteine (98% v/v) and methanol (2% v/v) flowing at 1 mL min −1 for 10 minutes.…”

Section: Elemental Speciation Analysismentioning

confidence: 99%

Atomic spectrometry update: review of advances in elemental speciation

Clough

Harrington

Hill

et al. 2023

J. Anal. At. Spectrom.

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Section: Elemental Speciation Analysismentioning

confidence: 99%

Atomic spectrometry update: review of advances in elemental speciation

Clough

Harrington

Hill

et al. 2023

J. Anal. At. Spectrom.

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“…Waste incineration, fossil fuel combustion, cement production, artisanal gold mining, and smelting of ores are identified as anthropogenic sources of Hg emission [30]. Heating of elemental mercury is carried out in small scale gold mining and emits Hg vapour to the atmosphere and the vapours are settled as dust on water and soil surface [31]. Inorganic Hg is converted into MeHg in the aquatic ecosystems making it an essential part of Hg biogeochemical cycle.…”

Section: Sources Of Mercury Pollutionmentioning

confidence: 99%

A Retrospection on Mercury Contamination, Bioaccumulation, and Toxicity in Diverse Environments: Current Insights and Future Prospects

Kumar,

Umesh,

Shanmugam

et al. 2023

Sustainability

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Owing to various industrial applications of mercury (Hg), its release into the environment at high concentration is becoming a great threat to living organisms on a global scale. Human exposure to Hg is greatly correlated with contamination in the food chain through cereal crops and sea foods. Since Hg is a non-essential component and does not possess a biological role and exhibits carcinogenic and genotoxic behaviour, biomonitoring with a focus on biomagnification of higher living animals and plants is the need of the hour. This review traces the plausible relationship between Hg concentration, chemical form, exposure, bioavailability, bioaccumulation, distribution, and ecotoxicology. The toxicity with molecular mechanisms, oxidative stress (OS), protein alteration, genomic change, and enzymatic disruptions are discussed. In addition, this review also elaborates advanced strategies for reducing Hg contamination such as algal and phytoremediation, biochar application, catalytical oxidation, and immobilization. Furthermore, there are challenges to overcome and future perspectives considering Hg concentrations, biomarkers, and identification through the nature of exposures are recommended.

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“…Compared to loam and sand, clay has the best capacity for mercury adsorption, showing that a smaller grain size is better for mercury enrichment. Hg is bound to surface matrix minerals and SOM by forming organometal Hg complexes so that they simultaneously exist in different forms [43].…”

Section: Characteristics and Correlation Of Total Hg Between Chemical...mentioning

confidence: 99%

Modification of Surface Charges on Ex-Gold Mining Soil Ameliorated with Activation of Sub-Bituminous Coal - NaOH

Prasetyo,

Maulana,

Harianti

et al. 2023

Int. J. Adv. Sci. Eng. Inf. Technol.

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The high mercury contamination in the ex-gold mining soil is the impetus for the development of soil remediation with amelioration technology that utilizes sub-bituminous coal activated with 10% NaOH (SC-NaOH) to modify the soil surface charge by affecting the chemical properties of the ex-gold mining soil. This research aimed to determine and study the modified surface charge of ex-gold mining soil ameliorated with SC - NaOH. The experimental design used in this study was a Completely Randomized Design with three replications. The treatment was implemented in a pot with equivalent dose: A = 0 (0.0g); B = 10 (0.5g); C = 20 (1.0g); D = 30 (1.5g), and (E) 40 t ha-1 (2g 100g-1 soil). The results showed amelioration technology with SC - NaOH, at the application of 40 t ha-1 on ex-gold mining soils, can modification of soil surface charge through changes in chemical characteristics by increasing the pH H2O EC, CEC, and SOM, respectively of 5.77; 4.33 dS m-1; 2.41 cmol(+) kg-1 and 17.15% compared to the control. Soil surface charge supported by soil minerals [Quartz (SiO2), Graphite (C), and Periclase (MgO)] and also happening decreases transmittance in the OH group (0.18%), which causes an increased adsorption capacity of the soil to Hg, which causes a decrease in total Hg of 2.84 mg kg-1 compared to the control. The correlation between total Hg and soil chemical properties in ex-gold mining soil ameliorated with SC â€“ NaOH (Total Hg with SOM > Î”pH > EC > pH H2O > CEC).

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Organo-mercury species in a polluted agricultural flood plain: Combining speciation methods and polymerase chain reaction to investigate pathways of contamination

Cited by 4 publications

References 60 publications

Atomic spectrometry update: review of advances in elemental speciation

Atomic spectrometry update: review of advances in elemental speciation

A Retrospection on Mercury Contamination, Bioaccumulation, and Toxicity in Diverse Environments: Current Insights and Future Prospects

Modification of Surface Charges on Ex-Gold Mining Soil Ameliorated with Activation of Sub-Bituminous Coal - NaOH

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