Sedentary nestlings of Wood Stork as monitors of mercury contamination in the gold mining region of the Brazilian Pantanal

2011 ◽  
Vol 111 (8) ◽  
pp. 1091-1095 ◽  
Author(s):  
Silvia Nassif Del Lama ◽  
Cristiano Dosualdo Rocha ◽  
Wilson Figueiredo Jardim ◽  
Jo-Szu Tsai ◽  
Peter Crawford Frederick
Keyword(s):  
Gold Mining ◽  
Mercury Contamination ◽  
Wood Stork ◽  
Mining Region ◽  
Brazilian Pantanal

Mercury contamination in fish from gold mining areas in Indonesia and human health risk assessment

2006 ◽  
Vol 368 (1) ◽  
pp. 320-325 ◽  
Author(s):  
Zuleica C. Castilhos ◽  
Saulo Rodrigues-Filho ◽  
Ana Paula C. Rodrigues ◽  
Roberto C. Villas-Bôas ◽  
Shefa Siegel ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Health Risk ◽  
Human Health ◽  
Health Risk Assessment ◽  
Gold Mining ◽  
Human Health Risk ◽  
Human Health Risk Assessment ◽  
Mercury Contamination ◽  
Mining Areas

scholarly journals Environmental Pollution by Heavy Metals in the Gold Mining Region of East Cameroon

2018 ◽  
Vol 14 (5) ◽  
pp. 212-225
Author(s):  
Dallou Guy Blanchard ◽  
Ngoa Engola Louis ◽  
Abdourahimi ◽  
Bongue Daniel ◽  
Saïdou ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Environmental Pollution ◽  
Gold Mining ◽  
Mining Region

scholarly journals Mercury Contamination of Cattle in Artisanal and Small-Scale Gold Mining in Bombana, Southeast Sulawesi, Indonesia

Geosciences ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 133 ◽  
Author(s):  
◽  
Masayuki Sakakibara ◽  
Koichiro Sera ◽  
Idham Andri Kurniawan
Keyword(s):  
Gold Mining ◽  
Mercury Contamination ◽  
Small Scale

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.

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