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

Autor: Sofia Caumo, Wilkinson L. Lázaro, Ernandes Sobreira Oliveira, Karmel Beringui, Adriana Gioda, Carlos German Massone, Renato Carreira, Djair Sergio de Freitas, Aurea R. A. Ignacio, Sandra Hacon
Rok vydání: 2022
Předmět:
Zdroj: Air Quality, Atmosphere & Health. 15:2239-2254
ISSN: 1873-9326
1873-9318
Popis: 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 kgThe online version contains supplementary material available at 10.1007/s11869-022-01248-2.
Databáze: OpenAIRE
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