Purification of arsenic-contaminated water using iron molybdate filters and monitoring of their genotoxic, mutagenic, and cytotoxic effects through bioassays

Hott, Rodrigo C.; Magalhães, Thainá S.; Maia, Luiz Fernando Oliveira; Santos, Kallel S. F.; Rodrigues, Guilherme L.; Oliveira, Luiz C.A.; Pereira, Márcio C.; Faria, Marcília de Araújo Medrado; Carli, Alessandra P.; Alves, Caio César de Souza; Rodrigues, Jairo Lisboa

doi:10.1007/s11356-020-10856-3

Cited by 3 publications

(2 citation statements)

References 51 publications

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“…The Allium cepa test is an important bioassay for monitoring the potential synergistic effects of a mixture of pollutants, including toxic metals, allowing the determination of the cytotoxicity, genotoxicity, and mutagenicity of As present in water [35]. The present study was carried out according to method described in a previous study, with modifications [35].…”

Section: Allium Cepa Testmentioning

confidence: 99%

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Arsenic in Mining Areas: Environmental Contamination Routes

Faria

Hott

Santos

et al. 2023

IJERPH

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The emission and accumulation of toxic elements such as arsenic in various environmental compartments have become increasingly frequent primarily due to anthropogenic actions such as those observed in agricultural, industrial, and mining activities. An example of environmental arsenic contamination in Brazil exists in the city of Paracatu, MG, due to the operation of a gold mine. The aim of this work is to evaluate the routes and effects of arsenic contamination in environmental compartments (air, water, and soil) and environmental organisms (fish and vegetables) from mining regions as well as the trophic transfer of the element for a risk assessment of the population. In this study, high levels of arsenic were found in the waters of the Rico stream ranging from 4.05 µg/L during the summer season to 72.4 µg/L during the winter season. Moreover, the highest As concentration was 1.668 mg kg−1 in soil samples, which are influenced by seasonal variation and by proximity to the gold mine. Inorganic and organic arsenic species were found above the allowed limit in biological samples, indicating the transfer of arsenic found in the environment and demonstrating a great risk to the population exposed to this area. This study demonstrates the importance of environmental monitoring to diagnose contamination and encourage the search for new interventions and risk assessments for the population.

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Section: Allium Cepa Testmentioning

confidence: 99%

“…The rate of root inhibition was assessed by the average length of growing seeds (ALS) [35]. To obtain the ALS, the arithmetic mean was calculated according to the root sizes.…”

Section: Allium Cepa Testmentioning

confidence: 99%

Arsenic in Mining Areas: Environmental Contamination Routes

Faria

Hott

Santos

et al. 2023

IJERPH

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Mesoporous molybdate-substituted hydroxyapatite nanopowders obtained via a hydrothermal route

Goldberg,

Donskaya,

Valeev

et al. 2024

Ceramics International

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Artisanal Gem Mining in Brazil: Evaluation of Oxidative Stress and Genotoxicity Biomarkers

da Silva,

Magalhães,

Pires

et al. 2024

IJERPH

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This study was carried out in the district of Taquaral de Minas, in the municipality of Itinga, located in Jequitinhonha Valley, state of Minas Gerais, which is considered one of the largest yolk-producing regions in Brazil. Miners in gem extraction areas are prone to severe oxidative damage due to their increased exposure to toxic metals, as well as chemical, physical, and biological agents, resulting in diseases such as silicosis. Thus, this work aimed to evaluate occupational exposure in prospectors through biomonitoring techniques using a variety of biomarkers for oxidative stress, genotoxicity, and mutagenicity. Twenty-two miners and seventeen workers who were not occupationally exposed were recruited, totaling thirty-nine participants. The study was approved by the Research Ethics Committee of the Federal University of the Jequitinhonha and Mucuri Valleys. In this study, the levels of total peroxides, catalase activity, and microelements in plasma were evaluated. Additionally, environmental analysis was carried out through the Ames and Allium cepa tests. The results of the lipoperoxidation assessment were significant, with increased frequencies in exposed individuals compared to controls (p < 0.05), as determined by the Mann–Whitney test. Micronutrients in the blood showed lower concentrations in the group exposed to Fe and Se than in individuals not exposed to these elements. The results of the Ames test and Allium cepa test were statistically significant compared to the controls (p < 0.05), as determined by the Mann–Whitney test for genotoxicity and cytotoxicity. Thus, the results of the present study indicate possible environmental contamination and a potential risk to the health of miners, which suggests that further studies are important in the region.

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Purification of arsenic-contaminated water using iron molybdate filters and monitoring of their genotoxic, mutagenic, and cytotoxic effects through bioassays

Cited by 3 publications

References 51 publications

Arsenic in Mining Areas: Environmental Contamination Routes

Arsenic in Mining Areas: Environmental Contamination Routes

Mesoporous molybdate-substituted hydroxyapatite nanopowders obtained via a hydrothermal route

Artisanal Gem Mining in Brazil: Evaluation of Oxidative Stress and Genotoxicity Biomarkers

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