The dynamics of mercury near Idrija mercury mine, Slovenia: Horizontal and vertical distributions of total, methyl, and ethyl mercury concentrations in soils

Tomiyasu, Takashi; Kodamatani, Hitoshi; Imura, Ryusuke; Matsuyama, Akito; Miyamoto, Junko; Akagi, Hirokatsu; Kocman, David; Kotnik, Jože; Fajon, Vesna; Horvat, Milena

doi:10.1016/j.chemosphere.2017.05.123

Cited by 37 publications

(15 citation statements)

References 34 publications

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“…This method does not require special equipment; mercury species were separated by solvent extraction and measured by CVAAS. In natural soil, not only methylmercury but also ethylmercury can be present [30]. Thus, by this method, the total amount of these organic mercury species will be determined.…”

Section: Mercury Measurementsmentioning

confidence: 99%

Distribution of total and organic mercury in soils around an artisanal and small-scale gold mining area in West Java, Indonesia

et al. 2020

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This study was conducted to understand the environmental behavior of mercury released by artisanal and small-scale gold mining (ASGM) activities. For this purpose, we attempted to assess the effect of diffused mercury on mercury concentrations in soil, demonstrate the presence of methylmercury in soil affected by the deposited mercury and determine the reactions associated with methylmercury production. The vertical profiles of mercury were obtained from two sites in the forest of the ASGM village in Pongkor (West Java, Indonesia) and from two sites in Mount Halimun-Salak National Park, which is approximately 12 km from the ASGM village. The highest total mercury concentration, 8.9 mg kg −1 , was observed for soil samples collected at the ASGM village. The mercury was concentrated at the surface or in the subsurface layers, and the concentrations were several times to more than ten times higher than the lowest values observed in the deeper layers at each site. Even in the national park, the highest concentration of 1.9 mg kg −1 was observed in the upper soil layer. These results suggest that the primary source of mercury in the forest soil is atmospheric deposition; fallen plant leaves also deliver accumulated mercury to the soil surface. The organic mercury percentages of the total mercury were 0.2 ± 0.1% for the national park and 0.3 ± 0.2% for ASGM sites. The vertical variation in organic mercury concentration did not always match that in total mercury concentration, which suggested that the formation of methylmercury in soil was closely related to the decomposition of organic matter near the surface. The soil surface is an important reaction field for methylmercury production in forested areas.

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Section: Mercury Measurementsmentioning

confidence: 99%

Distribution of total and organic mercury in soils around an artisanal and small-scale gold mining area in West Java, Indonesia

et al. 2020

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“…The results show that the soils are contaminated with Hg, Cr and Ni due to the mining of cinnabar and the occurrence of ultrabasic-rock fragments in the conglomerates. Mercury concentrations in these mine soils do not deviate from those in soils from other mine areas with cinnabar mineralization [20, [38][39][40][41][42]. Although the soils were shown to have increased concentrations of the three metals studied, they may not yet represent a risk to the environment because environmental hazards are mainly governed by metal mobility and availability.…”

Section: Discussionmentioning

confidence: 88%

Environmental Availability of Trace Metals (Mercury, Chromium and Nickel) in Soils from the Abandoned Mine Area of Merník (Eastern Slovakia)

Hiller¹,

Jurkovič²,

Majzlan³

et al. 2021

Pol. J. Environ. Stud.

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The former mercury ore deposit of Merník in Eastern Slovakia was selected for the investigation of the environmental availability of mercury (Hg), chromium (Cr) and nickel (Ni) in mine soils. Singlestep extractions with four chemical agents (deionised water, ethylenediaminetetraacetic (EDTA), acetic (CH 3 COOH) and hydrochloric (HCl) acid solutions) and chemical analysis of the common nettle (Urtica dioica) were used to determine the availability of the three metals. Regardless of the type of extraction, the soluble ratios of metals in mine soils increased in the order of Hg≤CrCH 3 COOH ≈ EDTA>˃H 2 O. The total or extractable metal concentrations in soil did not correlate with their concentrations in aerial parts of the common nettle, however, its ability to accumulate these trace metals in roots and aerial parts copied the results of extraction tests, i.e. Hg≤Cr

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“…According to the hard and soft acids and bases (HSAB) principle, Hg retention in soil is controlled by organic matter functional groups, which thereby play an important role in soil-Hg binding (Riccardi et al 2013 ; Reis et al 2016 ). Because of the interactions between Hg and soil components, Hg can bind more strongly with soil constituents than many other metals in soil (Tomiyasu et al 2017 ). Unfortunately, Hg-contaminated soils, owing to their different characteristics, have caused substantial challenges in soil remediation.…”

Section: Introductionmentioning

confidence: 99%

Effect of inorganic carbonate and organic matter in thermal treatment of mercury-contaminated soil

Cho

Kang

Kim

et al. 2021

Environ Sci Pollut Res

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Thermal treatment of mercury (Hg)-contaminated soil was studied to investigate the desorption behavior of Hg at different temperatures. The soil samples were collected from two locations with different land uses around the mine and industrial site. The effect of soil properties such as inorganic carbonate minerals and organic matter content on Hg desorption was investigated to understand the thermal desorption process. The effect of soil composition on Hg desorption showed that behavior at 100 °C was similar, but a different behavior could be found at 300 °C. The thermal desorption efficiency at 300 °C is affected by the thermal properties of soils and the Hg desorption capacity of the soils. The Hg from both soil types was removed above 300 °C, and Hg was effectively removed from mine soil due to the partial decomposition of carbonate in the soil composition, while industrial soil showed that desorption would be restrained by Hg organic matter complexes due to organic matter content. Despite a relatively higher concentration of Hg in the mine soil, Hg removal efficiency was greater than that in the industrial soil. Sequential extraction results showed that only the Hg fractions (residual fractions, step 6) in mine soil changed, while the industrial soil was affected by changes in Hg fractions (step 3 to step 6) at 300 °C. Changes in soil pH during thermal desorption are also influenced by heating time and temperature. Therefore, the mechanisms of Hg desorption during thermal treatment were observed by soil properties. The volatilization of Hg in the soil is induced by organic carbon, while soil Hg release is controlled by organic matter complexes.

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The dynamics of mercury near Idrija mercury mine, Slovenia: Horizontal and vertical distributions of total, methyl, and ethyl mercury concentrations in soils

Cited by 37 publications

References 34 publications

Distribution of total and organic mercury in soils around an artisanal and small-scale gold mining area in West Java, Indonesia

Distribution of total and organic mercury in soils around an artisanal and small-scale gold mining area in West Java, Indonesia

Environmental Availability of Trace Metals (Mercury, Chromium and Nickel) in Soils from the Abandoned Mine Area of Merník (Eastern Slovakia)

Effect of inorganic carbonate and organic matter in thermal treatment of mercury-contaminated soil

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