Magnesium Contamination in Soil at a Magnesite Mining Area of Jelšava-Lubeník (Slovakia)

Fazekašová, Danica; Fazekaš, Juraj; Hronec, Ondrej; Hornak, M.

doi:10.1088/1755-1315/92/1/012012

Cited by 6 publications

(8 citation statements)

References 3 publications

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“…The value of Mg (89.60±1.41 to 251.9±1.41 cmol/kg) in soil in dry season is higher than 68.30±0.71 to 147.0±1.41 cmol/kg in wet season and this may be attributed to the high level of organic matter in soil in dry season at Akwuke mine site. The level of Mg in soil at Akwuke coal mine site is substantially below 7,000 to 197,000 mg/kg observed in soil at Magnesite mining area in Jelšava and Lubeník in Slovakia (Fazekašová et al, 2018) and 4,590 ± 1,029 μg g-1 reported at a coal mine site in southern part of Santa Catarina State, Brazil (Zocche et al, 2017). The highest content of N (0.36±0.03 cmol/kg) and P (0.52±0.06 cmol/kg) in soil obtained in dry season at 10-20 cm and 20-30 cm middle slope of Akwuke mine is higher than 0.17±0.0 and 0.42±0.01 cmol/kg recorded in wet season at 20-30 cm and 10-20 cm middle slope of the mine site.…”

Section: Resultsmentioning

confidence: 82%

Seasonal variation of soil chemical characteristics at Akwuke Long Wall Underground Mined Site, Nigeria

Ogbonna¹,

Nzegbule²,

Okorie³

2018

Journal of Applied Sciences and Environmental Management

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The on-going action and plan to revive old coal mines in Nigeria necessitated a study on the soil chemical characteristics at abandoned coal mine in Akwuke, Enugu State, Nigeria. A single factor experiment was conducted in a randomized complete block design (RCBD) with three replications to obtain information on soil status of Akwuke mined site. Soil samples were collected randomly from ten different sampling points at 0-10, 10-20, and 20-30 cm soil depth in four cardinal points at north (N), south (S), east (E), west (W), and at the center (c) of crest, middle slope, and valley of Akwuke mined site. The samples were analyzed for heavy metals, macronutrient, soil pH, and organic matter content. Soil pH (4.29-6.14) in wet season is higher than 4.14-5.58 in dry season at Akwuke mine site. The values of N, P, K, Ca, and Mg in soil at Akwuke mine were higher in dry season than in wet season. The highest soil organic matter content (0.96±0.04%) at Akwuke mine is obtained in dry season at 0-10 cm valley. The concentrations of Ni, Pb, and Cd in soil at mined site ranged from 4.15±0.07 to 19.81±1.29, 6.11±0.13 to 21.10±0.85, and 0.01±0.00 to 3.06±0.08 mg/kg. Mg (89.60±1.41 to 251.9±1.41 cmol/kg). Cd and Ni in soil at the mined site was higher than their allowable limits in Sweden, and United Kingdom. The high concentrations of these metals (Cd and Ni) in soils could expose both animals and local inhabitants to high levels of Cd and Ni, thus, posing a serious health risks to the local people.

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Section: Resultsmentioning

confidence: 82%

Seasonal variation of soil chemical characteristics at Akwuke Long Wall Underground Mined Site, Nigeria

Ogbonna¹,

Nzegbule²,

Okorie³

2018

Journal of Applied Sciences and Environmental Management

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“…Simultaneaously, the irrational development and utilization of mineral resources lead to the destruction of the structure and function of ecosystems and bring a series of environmental problems (Kaur et al, ; Mhlongo & Amponsah‐Dacosta, ), with a severe impact on land degradation (Guzman, Lal, Byrd, Apfelbaum, & Thompson, ; Haigh et al, ; Martín‐Moreno et al, ; Tizado & Núñez‐Pérez, ) and ecological environmental risk (Dogra et al, ; Heidari, Kumar, & Keshavarzi, ; Keshavarzi & Kumar, ; Kumar et al, ). In the magnesite area, the direct influences of magnesite mining on surrounding environments come from the deposition of Mg‐rich dust generated, mainly composed of MgO and MgCO 3 , during magnesite mining and calcinations process, which settles on the surface and forms dense crust under the action of rainfall and weathering, severely affects the surrounding soil properties and vegetation growth (Yang, Zhao, Mao, Li, & Zeng, ; Fazekašová, Fazekaš, Hronec, & Horňak, ; Blanár et al, ). There is ample evidence indicating that Mg‐rich dust emission from magnesite mining has caused serious soil contamination (Fazekaš, Fazekašová, Hronec, Benková, & Boltižiar, ), hampering the soil health (Burges, Alkorta, Epelde, & Garbisu, ; Kumar et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…. In the magnesite area, the direct influences of magnesite mining on surrounding environments come from the deposition of Mg-rich dust generated, mainly composed of MgO and MgCO 3 , during magnesite mining and calcinations process, which settles on the surface and forms dense crust under the action of rainfall and weathering, severely affects the surrounding soil properties and vegetation growth (Yang, Zhao, Mao, Li, & Zeng, 2014;Fazekašová, Fazekaš, Hronec, & Horňak, 2017;Blanár et al, 2019). There is ample evidence indicating that Mg-rich dust emission from magnesite mining has caused serious soil contamination (Fazekaš, Fazekašová, Hronec, Benková, & Boltižiar, 2018), hampering the soil health (Burges, Alkorta, Epelde, & Garbisu, 2018;.…”

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confidence: 99%

Response of soil environment factors and microbial communities to phytoremediation with Robinia pseudoacacia in an open‐cut magnesite mine

et al. 2020

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Overexploitation of magnesium has caused serious environmental pollution, and the ecological restoration of magnesite mines has attracted increasing attention in China. The aim of this study was to assess the effects of phytoremediation with Robinia pseudoacacia (RP) on soil quality and microbial communities in magnesite mines. Here, soil samples were collected from restored areas (R. pseudoacacia), natural forest (NF), and unrestored areas (CK), and the soil microbial communities were assessed by Illumina high-throughput sequencing. Phytoremediation with R. pseudoacacia could alleviate soil alkalization and contribute to the accumulation of soil nutrients. A total of 531,329 effective 16S rRNA and 596,344 valid Internal Transcribed Spacer rRNA gene sequences were obtained, which were classified into 30 bacterial and 12 fungal phyla. The predominant bacterial and fungal phyla were Proteobacteria and Ascomycota, respectively. Bacterial diversity indices of RP were higher than those of the CK, both of which were lower than those in the NF site. While, fungal Chao1 and ACE (abundance-based coverage estimator) indices of RP were higher than those of the CK and even surpassed those in the NF site. Soil microbial communities significantly differed among different treatments, and the effects of soil factors on microbial communities were comprehensive and not determined by a single factor. Generally, these results indicated that phytoremediation with R. pseudoacacia could effectively improve the soil environment of the abandoned magnesium mine, which provide useful insights and practical references for the suitable species that would be planted on magnesite mine for restoration.

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“…However, during the processing of magnesite, trace amounts of some elements (Cu, Ni, As) were emitted together with Mg emissions into the atmosphere (Hronec et al, 1992). Potentially toxic elements (Zn, Cu, Cr and especially Mn) are directly bound to the emitted dust and pollute soil and other components of the environment (Fazekašová et al, 2017). Hančuľák & Bobro (2004) reported that in 1999, the alkaline dust in Jelšava contained 394,500 ppm Mg, 13,100 ppm Ca, >1 ppm Cd, 75 ppm Cu, 5 ppm Ni, >1 ppm Pb and 400 ppm Zn.…”

Section: Discussionmentioning

confidence: 99%

Secondary enrichment of soil by alkaline emissions: the specific form of anthropogenic soil degradation near magnesite processing factories and possibilities of land management

Polláková¹,

Hamar²,

Šimanský³

et al. 2020

Preprint

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Over the past 90 years, anthropogenic degradation of soil caused by alkaline, magnesium-rich dust deposit has presented a serious problem near magnesite processing factories in Jelšava and in Lubeník (Slovakia). The objective of this study was to investigate the chemical and biological soil properties in 14 sampling sites at different distances from factories, and based on the results, to propose further use of affected land. Results revealed that the available Mg 3-68 fold exceeded very high content for texturally medium soils at all grassland sampling sites, and areas close factory contained up to 14.4-17.4 g kg-1. Higher excess of available Mg caused significant increase of soil pH (up to 9.39) and worsened the conditions for the growth of vegetation. As a result, lower stock of newly formed organic matter (0.50-0.96 g kg-1 of labile carbon) with consequently weaker enzymatic activity occurred. Therefore, enrichment by organic matter provides a measure to support the biological activity of soil. The content of monitored heavy metals (Zn, Cu, Pb and Ni) was not related to Mg and did not influence the enzymatic activity of soil. Because alkaline emissions have decreased by 99.8% since 1970, the application of classical measures (mechanical removal of the Mg-rich crust, incorporation of gypsum and manure to the soil), or newer methods (growing of Mg hyper-accumulating plants) can offer more lasting positive effects than those of 50 years ago. This study concluded that Mg-rich, alkaline dust deposition causes long-lasting anthropogenic soil degradation.

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Magnesium Contamination in Soil at a Magnesite Mining Area of Jelšava-Lubeník (Slovakia)

Cited by 6 publications

References 3 publications

Seasonal variation of soil chemical characteristics at Akwuke Long Wall Underground Mined Site, Nigeria

Seasonal variation of soil chemical characteristics at Akwuke Long Wall Underground Mined Site, Nigeria

Response of soil environment factors and microbial communities to phytoremediation with Robinia pseudoacacia in an open‐cut magnesite mine

Secondary enrichment of soil by alkaline emissions: the specific form of anthropogenic soil degradation near magnesite processing factories and possibilities of land management

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