A method to describe attenuation of river contamination under peak flows: Can the public water supply from Paraopeba River finally return after the Brumadinho dam disaster?

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Trás-os-Montes and Alto Douro-
Autor(es): dc.contributorGeoprocessing Laboratory-
Autor(es): dc.contributorAdministrative City of the State of Minas Gerais-
Autor(es): dc.contributorRegional Coordination of Environmental Justice Promoters of the Paranaíba and Baixo Rio Grande River Basins-
Autor(es): dc.contributorUniversidade de Trás-os-Montes e Alto Douro-
Autor(es): dc.creatorde Souza Rolim, Glauco-
Autor(es): dc.creatorPacheco, Fernando António Leal-
Autor(es): dc.creatordo Valle Junior, Renato Farias-
Autor(es): dc.creatorde Melo Silva, Maytê Maria Abreu Pires-
Autor(es): dc.creatorPissarra, Teresa Cristina Tarlé-
Autor(es): dc.creatorde Melo, Marília Carvalho-
Autor(es): dc.creatorValera, Carlos Alberto-
Autor(es): dc.creatorFernandes, Luís Filipe Sanches-
Autor(es): dc.creatorMoura, João Paulo-
Data de aceite: dc.date.accessioned2025-08-21T19:56:48Z-
Data de disponibilização: dc.date.available2025-08-21T19:56:48Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-10-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.scitotenv.2024.174970-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/300195-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/300195-
Descrição: dc.descriptionTailings dams' disasters begin a stage of river water contamination with no endpoint at first sight. But when the river was formerly used for public water supply and the use was suspended as consequence of a dam break, a time window for safe suspension lift must be anticipated to help water managers. The purpose of this study was to seek for that moment in the case of Brumadinho dam disaster which occurred in 2019 and injected millions of cubic meters of iron- and manganese-rich tailings into the Paraopeba River, leading to the suspension of public water supply to Belo Horizonte metropolitan region with this resource, until now. To accomplish the proposed goal, an assemblage of artificial intelligence and socio-economic development models were used to anticipate precipitation, river discharge and metal concentrations (iron, manganese) until 2033. Then, the ratios of metal concentrations between impacted and non-impacted sites were determined and values representing extreme events of river discharge were selected for further assessment. A ratio ≈1 generally indicates a similarity between impacted and non-impacted areas or, put another way, a return of impacted areas to a pre-rupture condition. Moreover, when the ratio is estimated under the influence of peak flows, then a value of ≈1 indicates a return to pre-rupture conditions under the most unfavorable hydrologic regimes, thus a safe return. So, the extreme ratios were plotted against time and fitted to a straight line with intercept-x representing the requested safe time. The results pointed to 6.57 years after the accident, while using iron as contaminant indicator, or 8.71 years when manganese was considered. Despite of being a relatively low-risk timeframe, the suspension lift should be implemented in phases and monitored for precaution of potential sporadic contamination events, while dredging of the tailings from impacted areas should continue and be accelerated.-
Descrição: dc.descriptionUniversidade de Trás-os-Montes e Alto Douro-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação para a Ciência e a Tecnologia-
Descrição: dc.descriptionSchool of Agricultural and Veterinary Sciences Universidade Estadual Paulista (UNESP), Via de Acesso Prof. Paulo Donato Castellane, s/n, SP-
Descrição: dc.descriptionCQVR-Chemistry Center of Vila Real University of Trás-os-Montes and Alto Douro, Ap. 1013-
Descrição: dc.descriptionFederal Institute of the Triângulo Mineiro Geoprocessing Laboratory, Campus Uberaba-
Descrição: dc.descriptionState Secretariat for the Environment and Sustainable Development Administrative City of the State of Minas Gerais, Rodovia João Paulo II, 4143, Bairro Serra Verde, Minas Gerais-
Descrição: dc.descriptionRegional Coordination of Environmental Justice Promoters of the Paranaíba and Baixo Rio Grande River Basins, Rua Coronel Antônio Rios, 951-
Descrição: dc.descriptionCITAB-Centro de Investigação e Tecnologias Agroambientais e Biológicas Universidade de Trás-os-Montes e Alto Douro, Ap. 1013-
Descrição: dc.descriptionSchool of Agricultural and Veterinary Sciences Universidade Estadual Paulista (UNESP), Via de Acesso Prof. Paulo Donato Castellane, s/n, SP-
Descrição: dc.descriptionCNPq: 311791/2023-9-
Descrição: dc.descriptionFundação para a Ciência e a Tecnologia: UIDB/00616/2020-
Descrição: dc.descriptionFundação para a Ciência e a Tecnologia: UIDB/04033/2020-
Descrição: dc.descriptionFundação para a Ciência e a Tecnologia: UIDP/00616/2020-
Idioma: dc.languageen-
Relação: dc.relationScience of the Total Environment-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectDam breaks-
Palavras-chave: dc.subjectMachine learning prediction-
Palavras-chave: dc.subjectMine-tailings-
Palavras-chave: dc.subjectRatio analysis-
Palavras-chave: dc.subjectRiver water contamination-
Palavras-chave: dc.subjectSafe water supply-
Título: dc.titleA method to describe attenuation of river contamination under peak flows: Can the public water supply from Paraopeba River finally return after the Brumadinho dam disaster?-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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