Metal speciation of the Paraopeba river after the Brumadinho dam failure
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.scitotenv.2020.143917 http://hdl.handle.net/11449/209846 |
Resumo: | On January 25, 2019, a tailings dam at the Corrego do Feijao iron ore mine (Brumadinho, Minas Gerais, southern Brazil) ruptured and released similar to 12 million m(3) of mine tailings into the Paraopeba River, which is an important source of drinking water to a populous region. While water potability due to a strong increase in turbidity has been well documented, possible effects of metal contamination are yet to be addressed. We investigated the speciation of metals in the river water and desorption of metals from sediments as a means of supporting risk assessment, using the diffusive gradient in thin films (DGT) technique. desorption experiments and chemical speciation calculations. The results of the in-situ DGT monitoring revealed that the labile concentrations of metals were low in relation to the respective total and dissolved concentrations. Chemical speciation calculations showed that the heavy metals were not stable in the Paraopeba River. The desorption experiments suggested that sediments may release a limited amount of As and Cu. but large amounts of Mn into the river water. Higher concentrations of Fe and Mn indicated a possible association with the impact of mine tailings. In general, the total metal concentrations during the rainy season were higher than those during the dry season, whereas the reverse was generally the case for labile forms. This pattern reveals that metal speciation is intrinsically dependent on the seasonal variation of the hydrological conditions. (C) 2020 Elsevier B.V. All rights reserved. |
id |
UNSP_a7a37b94bcd062b4d5d7d7346205a9ba |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/209846 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Metal speciation of the Paraopeba river after the Brumadinho dam failureMetal speciationDGTDesorption experimentsGeochemical simulationBrumadinho dam disasterOn January 25, 2019, a tailings dam at the Corrego do Feijao iron ore mine (Brumadinho, Minas Gerais, southern Brazil) ruptured and released similar to 12 million m(3) of mine tailings into the Paraopeba River, which is an important source of drinking water to a populous region. While water potability due to a strong increase in turbidity has been well documented, possible effects of metal contamination are yet to be addressed. We investigated the speciation of metals in the river water and desorption of metals from sediments as a means of supporting risk assessment, using the diffusive gradient in thin films (DGT) technique. desorption experiments and chemical speciation calculations. The results of the in-situ DGT monitoring revealed that the labile concentrations of metals were low in relation to the respective total and dissolved concentrations. Chemical speciation calculations showed that the heavy metals were not stable in the Paraopeba River. The desorption experiments suggested that sediments may release a limited amount of As and Cu. but large amounts of Mn into the river water. Higher concentrations of Fe and Mn indicated a possible association with the impact of mine tailings. In general, the total metal concentrations during the rainy season were higher than those during the dry season, whereas the reverse was generally the case for labile forms. This pattern reveals that metal speciation is intrinsically dependent on the seasonal variation of the hydrological conditions. (C) 2020 Elsevier B.V. All rights reserved.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Sao Paulo State Univ, Environm Studies Ctr CEA, UNESP, BR-13506900 Rio Claro, SP, BrazilSao Paulo State Univ, Basin Studies Lab, UNESP, BR-13506900 Rio Claro, SP, BrazilSao Paulo State Univ, Dept Appl Geol, UNESP, BR-13506900 Rio Claro, SP, BrazilSao Paulo State Univ, Environm Studies Ctr CEA, UNESP, BR-13506900 Rio Claro, SP, BrazilSao Paulo State Univ, Basin Studies Lab, UNESP, BR-13506900 Rio Claro, SP, BrazilSao Paulo State Univ, Dept Appl Geol, UNESP, BR-13506900 Rio Claro, SP, BrazilFAPESP: 2018/17069-7Elsevier B.V.Universidade Estadual Paulista (Unesp)Teramoto, Elias H. [UNESP]Gemeiner, Hendryk [UNESP]Zanatta, Melina B. T. [UNESP]Menegario, Amauri A. [UNESP]Chang, Hung K. [UNESP]2021-06-25T12:31:14Z2021-06-25T12:31:14Z2021-02-25info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14http://dx.doi.org/10.1016/j.scitotenv.2020.143917Science Of The Total Environment. Amsterdam: Elsevier, v. 757, 14 p., 2021.0048-9697http://hdl.handle.net/11449/20984610.1016/j.scitotenv.2020.143917WOS:0006044329001131989662459244838Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScience Of The Total Environmentinfo:eu-repo/semantics/openAccess2021-10-23T19:50:03Zoai:repositorio.unesp.br:11449/209846Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:38:13.352610Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Metal speciation of the Paraopeba river after the Brumadinho dam failure |
title |
Metal speciation of the Paraopeba river after the Brumadinho dam failure |
spellingShingle |
Metal speciation of the Paraopeba river after the Brumadinho dam failure Teramoto, Elias H. [UNESP] Metal speciation DGT Desorption experiments Geochemical simulation Brumadinho dam disaster |
title_short |
Metal speciation of the Paraopeba river after the Brumadinho dam failure |
title_full |
Metal speciation of the Paraopeba river after the Brumadinho dam failure |
title_fullStr |
Metal speciation of the Paraopeba river after the Brumadinho dam failure |
title_full_unstemmed |
Metal speciation of the Paraopeba river after the Brumadinho dam failure |
title_sort |
Metal speciation of the Paraopeba river after the Brumadinho dam failure |
author |
Teramoto, Elias H. [UNESP] |
author_facet |
Teramoto, Elias H. [UNESP] Gemeiner, Hendryk [UNESP] Zanatta, Melina B. T. [UNESP] Menegario, Amauri A. [UNESP] Chang, Hung K. [UNESP] |
author_role |
author |
author2 |
Gemeiner, Hendryk [UNESP] Zanatta, Melina B. T. [UNESP] Menegario, Amauri A. [UNESP] Chang, Hung K. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Teramoto, Elias H. [UNESP] Gemeiner, Hendryk [UNESP] Zanatta, Melina B. T. [UNESP] Menegario, Amauri A. [UNESP] Chang, Hung K. [UNESP] |
dc.subject.por.fl_str_mv |
Metal speciation DGT Desorption experiments Geochemical simulation Brumadinho dam disaster |
topic |
Metal speciation DGT Desorption experiments Geochemical simulation Brumadinho dam disaster |
description |
On January 25, 2019, a tailings dam at the Corrego do Feijao iron ore mine (Brumadinho, Minas Gerais, southern Brazil) ruptured and released similar to 12 million m(3) of mine tailings into the Paraopeba River, which is an important source of drinking water to a populous region. While water potability due to a strong increase in turbidity has been well documented, possible effects of metal contamination are yet to be addressed. We investigated the speciation of metals in the river water and desorption of metals from sediments as a means of supporting risk assessment, using the diffusive gradient in thin films (DGT) technique. desorption experiments and chemical speciation calculations. The results of the in-situ DGT monitoring revealed that the labile concentrations of metals were low in relation to the respective total and dissolved concentrations. Chemical speciation calculations showed that the heavy metals were not stable in the Paraopeba River. The desorption experiments suggested that sediments may release a limited amount of As and Cu. but large amounts of Mn into the river water. Higher concentrations of Fe and Mn indicated a possible association with the impact of mine tailings. In general, the total metal concentrations during the rainy season were higher than those during the dry season, whereas the reverse was generally the case for labile forms. This pattern reveals that metal speciation is intrinsically dependent on the seasonal variation of the hydrological conditions. (C) 2020 Elsevier B.V. All rights reserved. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T12:31:14Z 2021-06-25T12:31:14Z 2021-02-25 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.scitotenv.2020.143917 Science Of The Total Environment. Amsterdam: Elsevier, v. 757, 14 p., 2021. 0048-9697 http://hdl.handle.net/11449/209846 10.1016/j.scitotenv.2020.143917 WOS:000604432900113 1989662459244838 |
url |
http://dx.doi.org/10.1016/j.scitotenv.2020.143917 http://hdl.handle.net/11449/209846 |
identifier_str_mv |
Science Of The Total Environment. Amsterdam: Elsevier, v. 757, 14 p., 2021. 0048-9697 10.1016/j.scitotenv.2020.143917 WOS:000604432900113 1989662459244838 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Science Of The Total Environment |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
14 |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129538938372096 |