Data/hora: 11/06/2024 22:23:35

Biblioteca(s): | Embrapa Agrobiologia.
Data corrente: | 29/11/2023
Data da última atualização: | 29/11/2023
Autoria: | BUCH, A. C.; SIMS, D. B.; CORREIA, M. E. F.; MARQUES, E. D.; SILVA-FILHO, E. V.
Afiliação: | ANDRESSA CRISTHY BUCH, UFF; DOUGLAS B. SIMS, COLLEGE OF SOUTHERN NEVADA, USA; MARIA ELIZABETH FERNANDES CORREIA, CNPAB; EDUARDO DUARTE MARQUES, CPRM; EMMANOEL VIEIRA SILVA-FILHO, UFF.
Título: | Preliminary assessment of potential pollution risks in soils: case study of the Córrego do Feijão Mine dam failure (Brumadinho, Minas Gerais, Brazil).
Ano de publicação: | 2023
Fonte/Imprenta: | International Journal of Mining, Reclamation and Environment, v. 37, n. 8, p.569–589, 2023.
ISSN: | 1748-0930
DOI: | https://doi.org/10.1080/17480930.2023.2226474
Idioma: | Inglês
Conteúdo: | The magnitude of the impacts caused by tailing dam failures represents, in a very short space of time, the potential risks of metals on the environment along time. In riparian soils affected by the failure of Córrego do Feijão Mine dam (Brazil), potential pollution risks were estimated using geochemical indices. Based on background and baseline values, strong anthropogenic interferences in the soil metal enrichment has been evidenced after collapse. Abnormal levels of Cd (1.01 mg kg−1), Cr (80 mg kg- −1), As (28 mg kg−1), Cu (90 mg kg−1), Pb (80 mg kg−1), and Ni (35 mg kg−1) in soils were associated to the highest risks. Overall, the potential ecological risk (>600) and pollution load (>5) indices indicated Brumadinho, Mário Campos, Betim and São Joaquim de Bicas as the areas most affected by the tailings spill. For the most areas, the geological accumulation index calculated from baseline values showed high commitments in soil quality, with pollution degree from moderately to strongly polluted (from 3 to 5, for Hg and Ni) and extremely polluted (>5, for Cd and Pb). In order to maintain the functional ecosystem integrity, restorative and reparative actions must be urgently carried out in these areas.
Palavras-Chave: | Geological accumulation; Pollution index; Pollution risk assessments.
Thesaurus Nal: | Soil quality; Trace elements.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Agrobiologia (CNPAB)
Exemplares: | CNPAB - (42192-1) - UPC - AP - DD -  -  -  - DIS