scholarly journals Assessment of Mercury Pollution in Rivers and Streams around Artisanal Gold Mining Areas of the Birim North District of Ghana

2011 ◽  
Vol 02 (09) ◽  
pp. 1227-1239 ◽  
Author(s):  
Richard K. Appoh ◽  
Louis K. Doamekpor ◽  
Ebenezer K. Hayford ◽  
Raphael K. Klake ◽  
Vincent K. Nartey
Keyword(s):  
Gold Mining ◽  
Mercury Pollution ◽  
Mining Areas ◽  
Artisanal Gold Mining ◽  
Rivers And Streams

Reducing mercury pollution from artisanal gold mining in Munhena, Mozambique

2009 ◽  
Vol 17 (5) ◽  
pp. 525-532 ◽  
Author(s):  
Janis A. Shandro ◽  
Marcello M. Veiga ◽  
Rebecca Chouinard
Keyword(s):  
Gold Mining ◽  
Mercury Pollution ◽  
Artisanal Gold Mining

scholarly journals Gravity Concentration in Artisanal Gold Mining

Minerals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1026
Author(s):  
Marcello M. Veiga ◽  
Aaron J. Gunson
Keyword(s):  
Developing Countries ◽  
Gold Mining ◽  
Field Trips ◽  
Mercury Pollution ◽  
Large Majority ◽  
Gravity Concentration ◽  
International Agencies ◽  
Artisanal Gold Mining ◽  
Artisanal Miners ◽  
Concentration Methods

Worldwide there are over 43 million artisanal miners in virtually all developing countries extracting at least 30 different minerals. Gold, due to its increasing value, is the main mineral extracted by at least half of these miners. The large majority use amalgamation either as the final process to extract gold from gravity concentrates or from the whole ore. This latter method has been causing large losses of mercury to the environment and the most relevant world’s mercury pollution. For years, international agencies and researchers have been promoting gravity concentration methods as a way to eventually avoid the use of mercury or to reduce the mass of material to be amalgamated. This article reviews typical gravity concentration methods used by artisanal miners in developing countries, based on numerous field trips of the authors to more than 35 countries where artisanal gold mining is common.

Mercury contamination from artisanal gold mining in Antioquia, Colombia: The world's highest per capita mercury pollution

2011 ◽  
Vol 410-411 ◽  
pp. 154-160 ◽  
Author(s):  
Paul Cordy ◽  
Marcello M. Veiga ◽  
Ibrahim Salih ◽  
Sari Al-Saadi ◽  
Stephanie Console ◽  
...  
Keyword(s):  
Gold Mining ◽  
Mercury Pollution ◽  
Mercury Contamination ◽  
Artisanal Gold Mining ◽  
Per Capita

scholarly journals Impacts of Artisanal Gold Mining on Water Quality: A Case Study of Tangandougou Commune in Sikasso Region, Mali

2018 ◽  
pp. 621-629
Author(s):  
Mahamadou Moussa Keita ◽  
George Morara Ogendi ◽  
Owuor Owuor ◽  
Wycliff N Nyamao
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Human Health ◽  
Gold Mining ◽  
Environmental Concern ◽  
Anthropogenic Activity ◽  
Physical Parameters ◽  
Temperature Conductivity ◽  
Mining Areas ◽  
Artisanal Gold Mining

Introduction: Unsustainable natural resources utilization is on the increase in the developing countries thus the ability of many local communities to meet their basic needs including food, water and shelter is jeopardized. Uncontrolled gold-mining in Sikasso region is one such an anthropogenic activity that is of great environmental concern to the local and national governments of Mali owing to its potential impacts on water quality, human health and environment. This study was conceived to assess the impacts of artisanal gold mining on water quality in Tangandougou in Sikasso region of Mali.Materials and Methods: In this descriptive study, water samples were collected, processed and analyzed for heavy metals (Lead, Cadmium and Arsenic) according to APHA protocols. Measurements of physical parameters of water quality were done according to APHA protocols. Data were analyzed using both descriptive and inferential statistics.Results: There were no significant spatial differences in physical and chemical parameters (pH, Temperature, Conductivity, total dissolved solids and Salinity) of water quality amongst the sampling sites. However, the heavy metals concentrations in the sampled water exceeded WHO drinking water quality guidelines.Conclusion: It was concluded that the water of Sankarani River and its tributaries is contaminated and may cause adverse effects on human health due to biomagnification and the bioaccumulative nature of heavy metals. Therefore, the study recommends continuous monitoring of the water quality in all water sources adjacent to gold-mining areas to protect human and environmental health.

Mercury Pollution from Artisanal Gold Mining in Block B, El Callao, Bolivar State, Venezuela

2005 ◽  
pp. 421-450 ◽  
Author(s):  
Marcello M. Veiga ◽  
Dario Bermudez ◽  
Heloisa Pacheco-Ferreira ◽  
Luiz Roberto Martins Pedroso ◽  
Aaron J. Gunson ◽  
...  
Keyword(s):  
Gold Mining ◽  
Mercury Pollution ◽  
Artisanal Gold Mining
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