Geochemical evaluation of potentially toxic elements determined in surface sediment collected in an area under the influence of gold mining

Santos, Marcus Vinicius Silva; Júnior, Jucelino Balbino da Silva; Carvalho, Carlos Eduardo Veiga de; Vergílio, Cristiane dos Santos; Hadlich, Gisele Mara; Santana, Carolina Oliveira de; Jesus, Taise Bomfim de

doi:10.1016/j.marpolbul.2020.111384

Cited by 18 publications

(5 citation statements)

References 18 publications

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“…The Hg concentration was monitored in stations L2, I3, T4, and D5, which are of closure of each microwatershed before entering La Salvajina Reservoir and which gathers the impacts of the gold processing plants that include Hg in their extraction process. The minimum value obtained was 0.094 μg L −1 in sampling station D5, while the maximum was 1,000 μg L −1 in sampling station T4 much higher than reported by Silva et al. (2020) and Gyamfi et al.…”

Section: Resultscontrasting

confidence: 58%

Water quality of streams associated with artisanal gold mining; Suárez, Department of Cauca, Colombia

Corredor

Pérez

Figueroa

et al. 2021

Heliyon

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Gold mining is one of the major problems of contamination of hydric resources in Colombia, this practice generates a high impact on water quality due to the accumulation of waste during its process. In this study water quality was evaluated in five natural stream beds corresponding to four streams with gold mining operations and one in the Cauca River, taking samples before the water inlet and after the outlet in each operation in the streams of Dios Te Dé, Tamboral, Piedra Imán, and Lorenzo affected by artisanal gold mining labor, which drain into the Salvajina Reservoir on the Cauca River in the municipality of Suárez Cauca, Colombia. Characterization of water bodies in the streams was carried out applying contamination indices of Colombia. The IDEAM protocol was used as guide to monitor the water currents. Samples were taken in 15 stations in the natural stream beds with operations and a sampling station on the Cauca River after the reservoir in these lotic ecosystems, during three periods; two from 2018 and one from 2019. The range of the contamination indices according to the environmental variables were considered. Results show that the contaminants associated with TSS, TUR, and Hg are high in the sampling stations in the output of the operations and the sampling stations of the streams with influence on the operations (T3, T4, I2, I3, D2, and D5). The water quality score according to the ICA IDEAM index varied between acceptable and regular in the different sampling stations. However the Hg concentration in sampling station C1 of the Cauca River is due to contributions from the operations in the amalgamation process. This requires strategic interventions by the communities, miners, operation owners, and control organisms as the Regional Autonomous Corporation of Cauca (CRC) and the Ministry of Environment and Sustainable Development (MADS) to minimize the negative impacts on the hydric resource and ecosystemic services associated with this resource.

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Section: Resultscontrasting

confidence: 58%

Water quality of streams associated with artisanal gold mining; Suárez, Department of Cauca, Colombia

Corredor

Pérez

Figueroa

et al. 2021

Heliyon

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“…Although the gold metal is collected at the end of the mining process, metals may end up in the tailing dumps at mining locations, thus presenting an exposure hazard for people living and working in these mining areas [ 56 ]. Santos et al (2020) found that surface-sediment samples collected in an area under the influence of gold mining were polluted (moderately to seriously) [ 59 ]. Wilson et al (2004) reported that Hg concentrations in blood increased during the breeding season in female birds from Northern Alaska, USA [ 60 ].…”

Section: Resultsmentioning

confidence: 99%

Potential Health Effects of Heavy Metals and Carcinogenic Health Risk Estimation of Pb and Cd Contaminated Eggs from a Closed Gold Mine Area in Northern Thailand

Aendo

Garine-Wichatitsky

Mingkhwan

et al. 2022

Foods

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Gold-mining activities have been demonstrated to result in significant environmental pollution by Hg, Pb, and Mn, causing serious concerns regarding the potential threat to the public health of neighboring populations around the world. The present study focused on heavy-metal contamination in the eggs, blood, feed, soil, and drinking water on chicken farms, duck farms, and free-grazing duck farms located in areas < 25 km and > 25 km away from a gold mine in northern Thailand. In an area < 25 km away, Hg, Pb, and Mn concentrations in the eggs of free-grazing ducks were significantly higher than > 25 km away (p < 0.05). In blood, Hg concentration in free-grazing ducks was also significantly higher than those in an area > 25 km away (p < 0.05). Furthermore, the Pb concentration in the blood of farm ducks was significantly higher than in an area > 25 km away (p < 0.05). The concentration of Cd in drinking water on chicken farms was significantly higher for farms located within 25 km of the gold mine (p < 0.05). Furthermore, a high correlation was shown between the Pb (r2 = 0.84) and Cd (r2 = 0.42) found between drinking water and blood in free-grazing ducks in the area < 25 km away. Therefore, health risk from heavy-metal contamination was inevitably avoided in free-grazing activity near the gold mine. The incremental lifetime cancer risk (ILCR) in the population of both Pb and Cd exceeded the cancer limit (10−4) for all age groups in both areas, which was particularly high in the area < 25 km for chicken-egg consumption, especially among people aged 13–18 and 18–35 years old. Based on these findings, long-term surveillance regarding human and animal health risk must be strictly operated through food chains and an appropriate control plan for poultry businesses roaming around the gold mine.

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“…In fact, the outcomes of PCA were in line with the results of PMF analysis. FC1 most possibly had a dominant lithogenic origin in the sediment (Santos et al, 2020). Chromium in the study area denotes a risk of contamination to the biota and the local resident because its hexavalent form possesses a high carcinogenic risk.…”

Section: Quantifying Hms Apportioning Sources In Water and Sedimentmentioning

confidence: 95%

Water resources pollution associated with risks of heavy metals from Vatukoula Goldmine region, Fiji

Kumar

Islam

et al. 2021

Journal of Environmental Management

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Geochemical evaluation of potentially toxic elements determined in surface sediment collected in an area under the influence of gold mining

Cited by 18 publications

References 18 publications

Water quality of streams associated with artisanal gold mining; Suárez, Department of Cauca, Colombia

Water quality of streams associated with artisanal gold mining; Suárez, Department of Cauca, Colombia

Potential Health Effects of Heavy Metals and Carcinogenic Health Risk Estimation of Pb and Cd Contaminated Eggs from a Closed Gold Mine Area in Northern Thailand

Water resources pollution associated with risks of heavy metals from Vatukoula Goldmine region, Fiji

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