Results 21 to 30 of about 3,050 (194)

Detection and Monitoring of Small-Scale Diamond and Gold Mining Dredges Using Synthetic Aperture Radar on the Kadéï (Sangha) River, Central African Republic

open access: yesRemote Sensing, 2023
Diamond and gold mining has been practiced by artisanal miners in the Central African Republic (CAR) for decades. The recent introduction of riverine dredges indicates a transition from artisanal/manual digging and sorting techniques to small-scale ...
Marissa A. Alessi   +3 more
doaj   +1 more source

Recent expansion of artisanal gold mining along the Bandama River (Côte d’Ivoire)

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2022
Recent development of small-scale gold mining activities in Côte d’Ivoire is a serious threat to the environment because of deforestation, soil scrapping, pit mining, over-use of water resources and pollution of surface and ground waters by mercury ...
Ndeye Marame Ngom   +7 more
doaj   +1 more source

The impact of Covid-19 on gold and gemstone artisanal and small-scale mining in sub-Saharan Africa: The case of Ghana and Kenya [PDF]

open access: yes, 2021
Artisanal and small-scale miners are facing unprecedented challenges due to the novel coronavirus (Covid-19) pandemic. The paper adopts a practice-based approach to examine the impact of Covid-19 on gold and gemstone artisanal and small-scale mining (ASM)
Tagoe, Naa Dedei   +4 more
core   +1 more source

Artisanal and small-scale gold mining in the Southern Espinhaço Range, Brazil, using time-domain electromagnetic induction: prospecting, efficiency, and environmental aspects [PDF]

open access: yesBrazilian Journal of Geology, 2023
Gold mining has profound ties to the history of Brazilian colonization and still takes place with many communities involved in artisanal and small-scale gold mining.
Henrique Borgatti   +2 more
doaj   +1 more source

Heavy Metals in the Soils of Placer Small-Scale Gold Mining Sites in Myanmar [PDF]

open access: yesJournal of Health and Pollution, 2020
Background. Artisanal and small-scale mining activities are widely practiced globally. Concentrations of heavy metals associated with gold, such as copper (Cu), zinc (Zn), arsenic (As), cadmium (Cd), mercury (Hg) and lead (Pb) can increase in the ...
Aung Zaw Tun   +2 more
doaj   +1 more source

A Cross-Sectional Survey on Knowledge and Perceptions of Health Risks Associated with Arsenic and Mercury Contamination from Artisanal Gold mining in Tanzania. [PDF]

open access: yes, 2013
An estimated 0.5 to 1.5 million informal miners, of whom 30-50% are women, rely on artisanal mining for their livelihood in Tanzania. Mercury, used in the processing gold ore, and arsenic, which is a constituent of some ores, are common occupational ...
Charles, Elias   +17 more
core   +2 more sources

The impact of artisanal mining on rehabilitation efforts of abandoned mine shafts in Sutherland goldfield, South Africa

open access: yesJàmbá, 2019
Abandoned gold mine sites are generally characterised by severe environmental problems and physical hazards. Because of socio-economic problems confronting communities around abandoned mine sites, historic and abandoned gold mines have become hot-spots ...
Sphiwe E. Mhlongo   +4 more
doaj   +1 more source

Comparison of Gold Yield with Traditional Amalgamation and Direct Smelting in Artisanal Small-Scale Gold Mining in Uganda [PDF]

open access: yesJournal of Health and Pollution, 2019
Background. The amalgamation method used by artisanal small-scale miners is the single largest source of global mercury emission. The goal of the ‘Free Your Mine’ project is to stop mercury use in artisanal and small-scale mining. Objectives.
Birgitte Stoffersen   +7 more
doaj   +1 more source

Small-scale Gold Mining, Mercury Exposure and the Struggle for the Right to Water in the Peruvian Amazon

open access: yesAlternautas, 2022
Mining, right, to water, struggle, Amazon, Peru Since the 2008 financial crisis, increase in global demand and the price of gold have led to an expansion of industrial and artisanal gold mining (Swenson et al., 2011; World Gold Council, 2010). Worldwide,
Céline Delmotte
doaj   +1 more source

Artisanal and Small-Scale Gold Mining

open access: yes, 2021
Artisanal gold mining occurs informally and therefore relies on low technologies and extraction methods lacking pollution controls. As a result, despite the fact that artisanal gold mining produces only twenty percent of the world’s gold, it releases more mercury than any other sector and represents the largest source of mercury emissions.
openaire   +3 more sources

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