scholarly journals THE HAZARD OF MERCURY CONTAMINATION OF THE ENVIRONMENT AKM Page 1 30/05/2015RESULTING FROM THE DISPOSAL OF MINING WASTE

2011 ◽  
Author(s):  
Anna Michalska
Keyword(s):  
Mining Waste ◽  
Mercury Contamination

scholarly journals Comparison of Bacterial Community Structure and Diversity in Traditional Gold Mining Waste Disposal Site and Rice Field by Using a Metabarcoding Approach

2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Fatimawali ◽  
Billy Johnson Kepel ◽  
Maria Apriliani Gani ◽  
Trina Ekawati Tallei
Keyword(s):  
Community Structure ◽  
Bacterial Community ◽  
Waste Disposal ◽  
Gold Mining ◽  
Rice Field ◽  
Mining Waste ◽  
Mercury Contamination ◽  
Disposal Site ◽  
Small Scale ◽  
Waste Disposal Site

Traditional small-scale gold mining mostly use mercury to extract the gold from ores. However, mercury contamination in the environment can affect the composition and structure of the bacterial community. The purpose of this study was to determine the effect of mercury contamination on the bacterial community in the traditional gold mining waste disposal site and in the rice field. Mercury analysis was carried out using the CVAFS method. Analysis of bacterial communities and structure was carried out based on the results of metabarcoding of the V3-V4 16S rRNA regions obtained from paired-end Illumina MiSeq reads. The results showed that the sample from the mining waste disposal site had a mercury level of 230 mg/kg, while the sample from the rice field had 3.98 mg/kg. The results showed that there were differences in microbial composition and community structure in both locations. With the total reads of 57,031, the most dominant phylum was Firmicutes in the mining disposal site sample. Meanwhile, with the total reads of 33,080, the sample from rice field was dominated by Planctomycetes. The abundant classes of bacteria in the mining waste disposal site, from the highest were Bacilli, Gammaproteobacteria and Planctomycetia, while the sample from the rice field was dominated by the Planctomycetia and Acidobacteria subdivision 6. The families that dominated the sample in disposal site were Bacillaceae and Aeromonadaceae, while the sample from the rice field was dominated by Gemmataceae. The abundant genera in both locations were Bacillus and Gemmata. This study concluded that the high level of mercury in the soil reduced the richness and diversity of bacterial phyla and lower taxa. There was also a shift in the dominance of phyla and lower taxa in both locations. This study provides an understanding of the microbial community structure in the area that is highly contaminated with mercury to open insight into the potential of these bacteria for mercury bioremediation.

Contribution of fluorite mining waste to mercury contamination in coastal systems

2019 ◽  
Vol 149 ◽  
pp. 110576 ◽  
Author(s):  
Rubén Forján ◽  
Diego Baragaño ◽  
Carlos Boente ◽  
Elena Fernández-Iglesias ◽  
Eduardo Rodríguez-Valdes ◽  
...  
Keyword(s):  
Mining Waste ◽  
Mercury Contamination ◽  
Coastal Systems

To the question about the utilization of coal mining waste

2019 ◽  
Vol 5 (10) ◽  
pp. 153-158
Author(s):  
E.I. Khabarova ◽  
◽  
E.S. Zarubina ◽  
Keyword(s):  
Coal Mining ◽  
Mining Waste

Evaluation of environmental impact of mining waste using GIS technologies

2019 ◽  
Vol 12 ◽  
pp. 114-126 ◽  
Author(s):  
V.I. Usikov ◽  
◽  
L.N. Lipina ◽  
A.V. Alexandrov ◽  
S.I. Korneeva ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Mining Waste ◽  
Gis Technologies ◽  
Impact Of Mining

Mining waste: appraisal and use efficiency

2018 ◽  
Vol 8 ◽  
pp. 200-207 ◽  
Author(s):  
N.N. Melnikov ◽  
◽  
V.M. Busyrev ◽  
O.E. Churkin ◽  
◽  
...  
Keyword(s):  
Mining Waste ◽  
Use Efficiency

Methyl mercury in the dutch rhine delta

1994 ◽  
Vol 30 (10) ◽  
pp. 213-219 ◽  
Author(s):  
Hendrik Pieters ◽  
Victor Geuke
Keyword(s):  
Suspended Matter ◽  
Methyl Mercury ◽  
Mercury Contamination ◽  
Benthic Organisms ◽  
Considerable Decrease ◽  
Continuous Sedimentation ◽  
Highly Correlated ◽  
High Level ◽  
Almost All

Samples of yellow eel from various locations in the Dutch Rhine area have been analyzed for trend monitoring of mercury since 1977. In the western Rhine delta mercury levels in eels have hardly changed since the seventies, whereas in the eastern part of the Dutch Rhine area a considerable decrease of mercury concentrations in eel has occurred. Because of continuous sedimentation of contaminated suspended matter transported from upstream regions, accumulation rates and concentrations of mercury in eel in the western Rhine delta remained at a relatively high level. Analyses of methyl mercury in biota have been performed to elucidate the role of methyl mercury in the mercury contamination of the Dutch Rhine ecosystem. Low percentages of methyl mercury were observed in zooplankton (3 to 35%). In benthic organisms (mussels) percentages of methyl mercury ranged from 30 to 57%, while in fish species and liver of aquatic top predator birds almost all the mercury was present in the form of methyl mercury (> 80%). During the period 1970-1990 mercury concentrations of suspended matter in the eastern Rhine delta have drastically decreased. These concentrations seemed to be highly correlated with mercury concentrations of eel (R = 0.84). The consequences of this relation are discussed.

Mapping of human health risks arising from soil nickel and mercury contamination

2013 ◽  
Vol 244-245 ◽  
pp. 225-239 ◽  
Author(s):  
Mojgan Yeganeh ◽  
Majid Afyuni ◽  
Amir-Hosein Khoshgoftarmanesh ◽  
Loghman Khodakarami ◽  
Manouchehr Amini ◽  
...  
Keyword(s):  
Human Health ◽  
Health Risks ◽  
Mercury Contamination ◽  
Human Health Risks

scholarly journals Environmental mercury contamination around a chlor-alkali plant

1984 ◽  
Vol 32 (1) ◽  
pp. 439-444 ◽  
Author(s):  
Martin Lodenius ◽  
Esa Tulisalo
Keyword(s):  
Mercury Contamination
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