Geo-Spatial Characterization of Soil Mercury and Arsenic at a High-Altitude Bolivian Gold Mine

Johnson, Glen D.; Pavilonis, Brian; Caravanos, Jack; Grassman, Jean

doi:10.1007/s00128-017-2213-4

Cited by 3 publications

(2 citation statements)

References 33 publications

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“…Artisanal mining therefore, serves as a major cushion to the nation's economy, especially in provision of jobs for thousands of people by reducing insecurity to the minimal and the development of rural-urban community (Muller and Mutemeri, 2014). The wide acceptance comes from the stability in the price of solid minerals as compared with the unstable price of crude oil (Johnson et al, 2017); another advantage is the easy or convenient adoption of its mode of extract (United Nations, 2023).…”

Section: Introductionmentioning

confidence: 99%

Environmental Assessment of Artisanal Gold Mining on Soils of a Community within Southwestern, Nigeria

Laniyan,

Kolawole,

Kenjinu

2024

Preprint

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Artisanal gold mining a means of livelihood comes with its public health challenge in most Sub-Saharan African countries. The study therefore evaluates extent of artisanal gold mining pollution on the environment and public health in communities within Ilesha Osun Nigeria. The study was field and laboratory based. Thirty–five (35) top soil samples (0-20cm) were randomly collected around Ijana, Itagunmodi, Epe, Igbadae and Ifewara communities. Samples were analyzed using an Agilent 700 series Inductively Coupled Plasma (ICP) for the 35 element suite in Acme Laboratory, Canada. Statistical evaluation was done using geo–accumulation index, enrichment Factor, contamination factor, pollution load index, contamination degree and nemerow pollution Index. The heavy metal pollution level in soils was assessed using potential ecological risk index. Human health risk was assessed using hazard index, carcinogenic risk index and non–carcinogenic risk index. Results of metal content in the soils revealed wide variation in heavy metal concentration. The mean metal content of soil when compared with crustal average was higher with decreasing order Cr > Bi > Sb > Sn > W > As > Mo > Ag > Cd. The results of the contamination indices carried out showed that Bi, Sc and V contributed greatly to very high contamination of the soils. Health risk assessment revealed that the children are more prone to non–carcinogenic diseases than adults in the area. However, carcinogenic health risk showed that adults are prone to this type of health risk through oral ingestion of Cr. This study therefore uncovered that heavy metals extending over large areas may pose great threat to the environmental media.

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Section: Introductionmentioning

confidence: 99%

Environmental Assessment of Artisanal Gold Mining on Soils of a Community within Southwestern, Nigeria

Laniyan,

Kolawole,

Kenjinu

2024

Preprint

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“…Research on factors affecting work efficiency in the working environment include the work of Davis et al [15], who evaluated the impact of living altitude on cognitive and psychomotor functions. Moreover, Johnson et al [16] conducted a large-scale mercury-human health risk assessment for miners and villagers in an ingenio mining area in Bolivia. However, these studies are all analyzed from a single factor of production.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Working Efficiency of Typical Work in High‐Altitude Alpine Metal Mining Areas Based on a SeqGAN‐GABP Mixed Algorithm

Ning

Huang

Zhang

2021

Advances in Civil Engineering

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Man-machine efficacy evaluations of typical work in the safe mining of high-altitude alpine metal mines are associated with fuzziness, multiple indexes, and large subjective components. This results in difficulties in the prediction of the typical work efficiency in high-altitude alpine metal mining areas. In this study, ergonomic theory was applied to establish the evaluation index system of typical work efficiency in high-altitude alpine metal mining areas by studying the cooperative relationship between operators, working machines, working environment, and design variables. First, we investigated the collaborative relationship between workers, operating machinery, operating environment, and design variables in order to establish the evaluation index system of typical work efficiency in high-altitude alpine metal mining areas. Second, principal component analysis (PCA) was integrated with the fusion entropy weight method to (i) analyze the coupling correlation and overlapping effects between the factors influencing efficiency at different altitudes and (ii) to determine the key influencing factors. Third, a model based on the sequence generative adversarial network genetic algorithm backpropagation (SeqGAN-GABP) hybrid algorithm was established to predict the trends in the operating efficiency of typical work types in high-altitude alpine metal mining areas. Finally, three high-altitude alpine metal mines in Xinjiang were selected as representative examples to verify the proposed framework by comparing it with other state-of the art models (multiple linear regression prediction model, backpropagation (BP) neural network model, and genetic algorithm back propagation (GA-BP) neural network model). Results determine the average relative error of each model as 2.74%, 1.97%, 1.29%, and 1.02%, respectively, indicating the greater accuracy of our proposed method in predicting the efficiency of typical work types in high-altitude alpine mining areas. This study can provide a scientific basis for the establishment of mining safety judgment standards in high-altitude alpine areas.

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Heavy Metal Enrichment Factors in Fluvial Sediments of an Amazonian Basin Impacted by Gold Mining

Mora

Jumbo-Flores

González-Merizalde

et al. 2019

Bull Environ Contam Toxicol

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Geo-Spatial Characterization of Soil Mercury and Arsenic at a High-Altitude Bolivian Gold Mine

Cited by 3 publications

References 33 publications

Environmental Assessment of Artisanal Gold Mining on Soils of a Community within Southwestern, Nigeria

Environmental Assessment of Artisanal Gold Mining on Soils of a Community within Southwestern, Nigeria

Investigating the Working Efficiency of Typical Work in High‐Altitude Alpine Metal Mining Areas Based on a SeqGAN‐GABP Mixed Algorithm

Heavy Metal Enrichment Factors in Fluvial Sediments of an Amazonian Basin Impacted by Gold Mining

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