Levels of As, Cd and Pb in soils and sediments from gold mining areas in the
            municipalities of Pontes e Lacerda and Nova Lacerda, in the Vale do Alto Guaporé,
            (Valley of the High Guaporé ), MT

Santos, Sebastião dos; Pierangeli, Maria Aparecida Pereira; Ignácio, Áurea Regina Alves; Souza, Célia Alves de

doi:10.5935/1984-2295.20160125

Cited by 1 publication

(1 citation statement)

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“…Related to site contribution, the degraded site (site 20) accounted for 80% of the total contribution (Figure S3). Pb, Cd, Cu, and As have been found in wildland fires (Burton et al 2016;Garba and Abubakar 2018;US EPA 2019), but also it may be emitted in mining activities, including the processing and transportation of ores and wastewater around mines (dos Santos et al 2016;Tepanosyan et al 2018), and the degraded site was mainly impacted by artisanal gold mining activities. It can be the predominant source related to factor 1 (Fig.…”

Section: Levels and Risk Assessments Of Tesmentioning

confidence: 99%

Human risk assessment of ash soil after 2020 wildfires in Pantanal biome (Brazil)

Caumo

Lázaro

Oliveira

et al. 2022

Air Qual Atmos Health

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Wildfires have increased in the last years and, when caused by intentional illegal burnings, are frequently run out of control. Wildfire has been pointed out as an important source of polycyclic aromatic hydrocarbons (PAHs) and trace elements (TEs) — such as, As, Ni, and Pb — to environmental compartments, and thus may pose a risk to human health and to the ecosystem. In 2020, the Brazilian biome, Pantanal, faced the largest losses by wildfires in the last 22 years. Ashes from the topsoil layer in Pantanal were collected after these wildfires at 20 sites divided into the sediment, forest, PF, PS, and degraded sites. Toxicity and associated risks for human health were also evaluated. The areas highly impacted by wildfires and by artisanal gold mining activities showed higher concentrations for TEs and PAHs than the protected areas. Pb varied from 8 ± 4 to 224 ± 81 mg kg −1 , and total PAH concentration ranged between 880 ± 314 and 1350 ± 70 ng g −1 , at sites impacted by anthropogenic activities. Moreover, health risk assessments for TE and PAH indicated a potentially great risk for children and adults, via ingestion, inhalation, and dermal pathway. The carcinogenic risks exceeded reference values, for both TE and PAH, suggesting harmful conditions, especially for vulnerable groups, such as children and the elderly. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s11869-022-01248-2.

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Section: Levels and Risk Assessments Of Tesmentioning

confidence: 99%