Occupational health and safety in mining: Predictive probabilities of Personal Protective Equipment (PPE) use among artisanal goldminers in Ghana

Artisanal goldminers in Ghana are exposed to various levels and forms of health, safety and environmental threats. Without the required legislation and regulations, artisanal miners are responsible for their own health and safety at work. Consequently, understanding the probabilities of self-protection at work by artisanal goldminers is crucial. A cross-sectional survey of 500 artisanal goldminers was conducted to examine the probabilities of personal protective equipment use among artisanal goldminers in Ghana. The data was subjected to both descriptive and inferential statistics. Initial findings showed that personal protective equipment use among artisanal miners was 77.4%. Overall, higher probabilities of personal protective equipment use was observed among artisanal goldminers who work in good health and safety conditions as compared to artisanal miners who work in poor health and safety conditions. Also, personal protective equipment use was more probable among the highly educated artisanal goldminers, miners who regularly go for medical screening and the most experienced miners. Additionally, personal protective equipment use was more probable among artisanal miners who work in non-production departments and miners who work in the medium scale subsector. Inversely, personal protective equipment use was less probable among female artisanal miners and miners who earn more monthly income ($174 and above). To increase self-care and safety consciousness in artisanal mining, there is the need for a national occupational health and safety legislation in Ghana. Also, interventions and health promotion campaigns for better occupational conditions in artisanal mining should target and revise the health and safety related workplace programs and conditions.

Burkina Faso reforms are unlikely to stem violence

Significance Following a relative slackening of activity, 480 civilians were killed between May and August alone, bringing the total number of Burkinabe deaths since the first attacks in 2015 to more than 1,500. Insecurity seems to be disturbing wider social relations as well, with frequent community protests, deadly vigilante actions and clashes between artisanal miners and mine security forces. Impacts The army’s questionable human rights record may hinder efforts to improve relations with local communities. Organised labour may seek to capitalise on government failures to press its own demands. Failure to reduce armed conflict in the border regions may encourage more violence in the country’s centre as well.

Geochemical Investigation of Cassiterite At Bisichi (Kara II) And Kuru-Jentar, Plateau State, Nigeria Using X-Ray Fluorescence Analysis (xrf).

Background: Artisanal Mining of Cassiterite at Bisichi (Kara II) and Kuru-Jentar is a very tedious activity that is carried out by artisanal miners. It involves the use of primitive tools like digger, spade, shovel and to mention a few. Most of the artisanal mining activity in the study area is done with no prior knowledge about the geochemical constituent of the mineral deposit in the area but in order to solve the above stated problem, a geochemical analysis was conducted on the obtained samples of cassiterite from the study area and a geologic map of the mining pit was digitized using Ilwis 3.1 academic and Surfer 12. Result: A random sampling method was used to obtain ten (10) samples of cassiterite from the various visited pit at the study area with each weighing 10g. A laboratory analysis was also conducted using X-ray Fluorescence (XRF) analysis which shows that samples from Pit 1 to Pit 5 in the mine site at Kuru-Jentar has 44.45% - 44.9% of Tin (Sn) and 7.86% - 9.00% of Iron (II) oxide (Fe2O3) while samples from Pit 5 to Pit 10 in the mine site at Bisichi (Kara II) has 28.2% - 32.2 % of Tin (Sn) and 15.57% - 16.67% of Iron II oxide (Fe2O3). Conclusively, an understanding of the geochemical constituent of a mineral deposit within a given study area would help increase the knowledge of miners and also attract interested investors.

Cretaceous Geology, Age-Differences and Economic Geology of Gidan Alfarma Environ, Northwestern Nigeria

In this present study, the geology and economic aspect of lithological units of Sokoto Basin, sheet 4 South West Sokoto, part of Nigerian Sedimentary Basins were studied. It is bounded by latitudes N 13° 36' 30"- N 13° 40' 45" and longitudes E 05° 38' 00"- E 05° 40' 44"to gently undulating plain which was mapped on the scale of 1:25,000. The methodology adopted was mainly primary data which involved reconnaissance survey and actual or full field survey. The economic deposits include clays/ shale, lateritic ironstones, limestone, phosphate and gypsum, which are mined by the local artisanal miners.

Telomere length and outcome of treatment for pulmonary tuberculosis in a gold mining community

Telomere length (TL) is a marker of ageing and mitochondrial DNA (mtDNA) is an early marker of inflammation caused by oxidative stress. We determined TL and mtDNA content among active pulmonary tuberculosis (PTB) patients to assess if these cellular biomarkers differed between artisanal miners and non-miners, and to assess if they were predictive of treatment outcome. We conducted a prospective cohort study from August 2018 to May 2019 involving newly diagnosed PTB patients at three outpatient TB clinics in a rural Democratic Republic of Congo. We measured relative TL and mtDNA content in peripheral blood leukocytes (at inclusion) via qPCR and assessed their association with PTB treatment outcome. We included 129 patients (85 miners and 44 non-miners) with PTB (median age 40 years; range 5–71 years, 22% HIV-coinfected). For each increase in year and HIV-coinfection, TL shortened by − 0.85% (− 0.19 to − 0.52) (p ≤ 0.0001) and − 14% (− 28.22 to − 1.79) (p = 0.02) respectively. Independent of these covariates, patients with longer TL were more likely to have successful TB treatment [adjusted hazard ratio; 95% CI 1.27 for a doubling of leucocyte telomere length at baseline; 1.05–1.44] than patients with a shorter TL. Blood mtDNA content was not predictive for PTB outcome. For a given chronological age, PTB patients with longer telomeres at time of diagnosis were more likely to have successful PTB treatment outcome.

Geologic structures associated with gold mineralization in the Kirk Range area in Southern Malawi

In this contribution, we use a newly acquired high-resolution airborne geophysical data set and field geological investigations in the Kirk Range area in southern Malawi to understand structures that control gold mineralization. Gold in this area is alluvial, mined by artisanal miners and detailed information regarding the structures controlling primary mineralization remains sparse. Structural interpretations are afforded by in-depth investigation of airborne magnetic and radiometric data, which are then supported by ground geological mapping and by microscopic observations using X-ray computed tomography (XCT) and optical microscopy. The results show that the Kirk Range displays extensive faulting and shearing with a NE–SW trend as the prevalent structural grain of the region. Gold mineralization is hosted in NE–SW trending structures. The wall rock alteration associated with gold mineralization results in a pronounced K/Th anomaly, which is suggested as an important radiometric guide for future exploration efforts. Exploration in the Kirk Range region should focus on the NE–SW structures, which represent potential conduits for fluid flow.

Would You Fight? We Asked Aggrieved Artisanal Miners in Eastern Congo

To meet the rising demand for minerals, mining companies have ventured into fragile areas, often at the expense of artisanal miners. This has led to grievances, and at times violence. Who among the aggrieved intend to use violence? How can peace be maintained? This paper uses individual-level data to address these questions. Among a sample of 469 about-to-be-evicted artisanal miners in Eastern Congo, we inquire about the intention to engage in several forms of violence. We identify how this intention varies with miners’ past exposure to violence and attitudes towards policies that seek social peace. A large proportion of miners intends to destroy the company’s property, attack its employees, use fire arms, or join an armed group. These would-be-fighters are motivated by grievances, as well as material and social incentives. Our results contribute to understanding the micro-motivations underpinning the local resource curse and entail concrete lessons for mining policies.

Gravity Concentration in Artisanal Gold Mining

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.