scholarly journals Sustainability of the Artisanal and Small-Scale Gold Mining in Northeast Antioquia-Colombia

2021 ◽  
Vol 13 (16) ◽  
pp. 9345
Author(s):  
Óscar Jaime Restrepo Baena ◽  
Luis Enrique Martínez Mendoza

The aim of this work is to explain the concepts of sustainability with respect to small artisanal gold mining. For this, a qualitative approach with a descriptive scope was used, for which the bibliographic review technique was conducted. In this sense, articles, theses, books and institutional documents, and any contribution related to the research topic were taken into consideration. Likewise, this documentation contributed to the delimiting aspects that allowed a contrast between the proposed definitions and small artisanal mining in the Northeast Antioquia region in Colombia. Based on the reviewed sources, different needs were recognized in artisanal small-scale gold mining in Northeast Antioquia that still need action. In conclusion, through the exposition of sustainability theories, three common factors were identified within the various positions that were raised—the environmental, economic, and sociocultural dimensions.

Author(s):  
Keith W. Torrance ◽  
Stewart D. Redwood ◽  
Alessandro Cecchi

AbstractMarmato, Colombia, has been an important centre of gold mining since before the first Spanish colonizers arrived in 1536. The Marmato deposit is hosted in a dacite and andesite porphyry stock as sheeted sulphide-rich veinlet systems. The district is currently experiencing a surge in both major mining projects and artisanal mining, driven by sustained high gold prices. Ore from small-scale and artisanal gold mining is processed in numerous small mills (entables) around Marmato, which impact surface water quality through the discharge of milled waste rock slurry, highly alkaline cyanide-treated effluent, and high dissolved metal loads. To investigate the impact of artisanal mining and ore processing, water samples were collected in January 2012 from streams around Marmato. The average dissolved metal concentrations in impacted streams were Zn, 78 mg L−1; Pb, 0.43 mg L−1; Cu, 403 µg L−1 Cd, 255 µg L−1; As, 235 µg L−1; Ni, 67 µg L−1; Co, 55 µg L−1; Sb, 7 µg L−1; and Hg, 42 ng L−1, exceeding World Health Organization drinking water guidelines. In addition, arsenic speciation was conducted in-situ and indicated that 91–95% of inorganic arsenic species is in the form of As(V). Spatial analysis of the data suggests that entables processing ore for artisanal miners are the main contributor to water pollution, with high sediment loads, alkalinity and elevated concentrations of dissolved arsenic, cadmium, mercury and lead, caused by the processing of gold-bearing sulphides in the entables. Geochemical data from surface water were compared to a comprehensive data set of whole rock analyses from drill core and channel samples from the deposit, indicating that the deposit is significantly enriched in gold, silver, lead, zinc, arsenic, antimony, and cadmium compared to crustal averages, which is reflected in the surface water geochemistry. However, elevated mercury levels in surface water cannot be explained by enrichment of mercury in the deposit and strongly suggest that mercury is being added to concentrates during ore processing to amalgamate fine gold.


2017 ◽  
Vol 20 ◽  
pp. 68-77
Author(s):  
Kouame Joseph Arthur Kouame ◽  
Fu Xing Jiang ◽  
Yu Feng ◽  
Si Tao Zhu

In rural regions, mining is an activity that employs many people due to the fact that the barriers to entry are sometime trivial, with very low technology, capital fund and no specialized skills required. Many people including children into artisanal mining in Ivory Coast because they can earn higher incomes in mining than through other traditional activities such as agriculture, which is the main activity in the country. Artisanal mining contribute to reduce the abject poverty and it offers many others opportunities. However, this activity has many negative social impacts. Local people including miners are risking their life everyday due to the unsanitary conditions, prostitution, chemical contaminants, and alcoholism, and also the large degradation of lands. The main objective of this Paper is to understand how artisanal gold mining in the Ivory Coast affects local livelihoods and the environment. Some key recommendations for addressing artisanal mining activities in order to have a good option for sustainable management of mineral resources in the country are proposed.


2021 ◽  
Vol 13 (3) ◽  
Author(s):  
Issah Baddianaah ◽  
Gordon N-yelkabo Tuu ◽  
Bernard Nuoleyeng Baatuuwie

The impact of artisanal mining on livelihoods in developing countries is a contentious issue. As a contribution to this subject, the study assessed the implications of artisanal gold mining activities on smallholder agriculture in the Wa East District of Ghana. A descriptive survey design with a mixed methods research approach was used. Primary data were sourced from respondents through interviews, questionnaire administration, and field observation. Five artisanal mining communities were selected based on the intensity of mining activities in them. The study respondents consisted of 290 household heads drawn randomly from 1,050 households. Also, key informants consisting of 5 assembly members and 15 lead artisanal miners were interviewed. The study found artisanal mining to be a dominant livelihood strategy in the district, employing about 76.2% of respondents at various levels. Artisanal mining contribution to household income was higher than food crop farming. Proceeds from mining are used to finance smallholder agriculture. However, the activities of the miners have resulted in the degradation of farmlands. We argued that artisanal mining activities should be aligned with other livelihood options such as agriculture in local communities. The study called for the engagement of local miners and traditional rulers in mineral resource decision-making.


Author(s):  
María Paula Flórez Jiménez ◽  
Ángela María Plata ◽  
Andrés Acero ◽  
Luz Stella Gaona ◽  
Álex Smith Araque ◽  
...  

2012 ◽  
Vol 32 ◽  
pp. 88-95 ◽  
Author(s):  
Kevin Drace ◽  
Adam M. Kiefer ◽  
Marcello M. Veiga ◽  
Matt K. Williams ◽  
Benjamin Ascari ◽  
...  

AMBIO ◽  
2000 ◽  
Vol 29 (8) ◽  
pp. 484-491 ◽  
Author(s):  
N. Håkan Tarras-Wahlberg ◽  
Adriana Flachier ◽  
Göran Fredriksson ◽  
Stuart Lane ◽  
Bo Lundberg ◽  
...  

2014 ◽  
Vol 2014 (1) ◽  
pp. 1444
Author(s):  
Richard Neitzel* ◽  
Allyson Green ◽  
Mozhgon Rajaee ◽  
Rachel Long ◽  
Stephanie Sayler

2020 ◽  
Vol 10 (26) ◽  
Author(s):  
Olusola O. Oladipo ◽  
Olatunde B. Akanbi ◽  
Pius S. Ekong ◽  
Chidiebere Uchendu ◽  
Oyetunji Ajani

Background. In early 2010, outbreaks of lead poisoning due to artisanal gold mining in villages in the northwest Nigerian state of Zamfara have resulted in the death of hundreds of children < 5 years old. There have also been unconfirmed reports of high mortality of geese within these villages. Objectives. To report a case of lead poisoning in three domestic free-range chickens found in one of the affected communities where illegal small-scale gold mining activities take place. Methods. Three free-range domestic chickens were presented during a field investigation in one of the villages. The birds were observed to be emaciated, weak, showing nervous manifestations and moribund. Results. Tissue extracts of liver, spleen and intestines were negative for Newcastle viral antigens, while cultures of liver and spleen biopsy were positive for Escherichia coli. Histopathological lesions were observed in the kidney, proventriculus and brain. Concentrations of lead in the tissues ranged between 7.5 mg/kg and 120.5 mg/kg wet weight, and the potential daily intake of lead in the tissues were estimated at 34.06–200.15 μg/day/kg body weight with an average of 118.37 μg/day/kg body weight. Conclusions. The results of the present study suggest probable risk to human health due to the consumption of chicken contaminated by lead in the affected villages. Poisoning in animal populations may serve as a sentinel to assess the extent of environmental contamination and human health problems related to lead. Ethics Approval. Protocols were approved and performed in accordance with relevant local guidelines and regulations as set by the Animal Care and Use Committee of the National Veterinary Research Institute, Vom, Nigeria. Competing Interests. The authors declare no competing financial interests.


2018 ◽  
Vol 27 (4) ◽  
pp. 415-444 ◽  
Author(s):  
Irene Vélez-Torres ◽  
Diana C. Vanegas ◽  
Eric S. McLamore ◽  
Diana Hurtado

This article discusses the results of a pilot research strategy for monitoring environmental hazards derived from the use of mercury in artisanal gold mining in the Alto Cauca region, Colombia. During 2016 and 2017, a transdisciplinary approach was established to inquire on the health, environment, and territorial problems originated from artisanal mining. In this article, we specifically focus on how this particular issue affects women in the area. We establish a closed-loop approach for integrating social action research with analytical sciences/engineering to understand risks associated with Hg2+ levels in artisanal and small-scale gold mining in the Cauca department. We develop a platform known as closed-loop integration of social action and analytical chemistry research.


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