Effects of the discharge of uranium mining effluents on the water quality of the reservoir: An integrative chemical and ecotoxicological assessment
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1038/s41598-017-14100-w http://hdl.handle.net/11449/170307 |
Resumo: | The water quality of the Antas reservoir, under the influence of treated effluents from a uranium mining area Ore Treatment Unit (UTM) with acid mine drainage, was investigated. Samples were collected every 3 months from the Antas reservoir (CAB, P41-E and P14) and from the UTM (P41-S). Chemical and acute 48 h toxicity tests using Ceriodaphnia silvestrii and Daphnia magna analyses were carried out to determine the potential environmental risks due to discharging the uranium mine effluents into this reservoir. All the water samples taken from the treated effluent (P41-S) were positively correlated with elevated concentrations of uranium, manganese, aluminum, zinc and fluoride and with high electrical conductivity and pH values, being considered toxic. In November 2014 water samples taken from the reservoir showed chemical concentrations above the legislation limits for fluoride (4.5 mg L-1) uranium (0.082 mg L-1), sulfate (662.4 mg L-1), manganese (1.125 mg L-1) and aluminum (1.55 mg L-1), and in July 2015 for fluoride (2.55 mg L-1), uranium (0.01 mg L-1) and manganese (0.36 mg L-1). The extremely high average value for hardness (543.55 mg L-1) possibly reduced the toxicity potential of this chemical species mixture with respect to the bioindicators. The influence of the variation in water hardness on the toxicity of the cladocerans was discussed. |
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Effects of the discharge of uranium mining effluents on the water quality of the reservoir: An integrative chemical and ecotoxicological assessmentThe water quality of the Antas reservoir, under the influence of treated effluents from a uranium mining area Ore Treatment Unit (UTM) with acid mine drainage, was investigated. Samples were collected every 3 months from the Antas reservoir (CAB, P41-E and P14) and from the UTM (P41-S). Chemical and acute 48 h toxicity tests using Ceriodaphnia silvestrii and Daphnia magna analyses were carried out to determine the potential environmental risks due to discharging the uranium mine effluents into this reservoir. All the water samples taken from the treated effluent (P41-S) were positively correlated with elevated concentrations of uranium, manganese, aluminum, zinc and fluoride and with high electrical conductivity and pH values, being considered toxic. In November 2014 water samples taken from the reservoir showed chemical concentrations above the legislation limits for fluoride (4.5 mg L-1) uranium (0.082 mg L-1), sulfate (662.4 mg L-1), manganese (1.125 mg L-1) and aluminum (1.55 mg L-1), and in July 2015 for fluoride (2.55 mg L-1), uranium (0.01 mg L-1) and manganese (0.36 mg L-1). The extremely high average value for hardness (543.55 mg L-1) possibly reduced the toxicity potential of this chemical species mixture with respect to the bioindicators. The influence of the variation in water hardness on the toxicity of the cladocerans was discussed.Radioecology Laboratory Poços de Caldas Laboratory Brazilian Nuclear Energy Commission, Rodovia Poços de Caldas/Andradas km 13São Paulo State University (UNESP) Institute of Science and Technology São José Dos Campos Rodovia Presidente Dutra, Km 137, 8 Eugenio de MeloCommunity Ecology Laboratory University of Vale Do Itajaí, Rua Uruguay, 458Chemical Analyses Laboratory Poços de Caldas Laboratory Brazilian Nuclear Energy Commission, Rodovia Poços de Caldas/Andradas km 13São Paulo State University (UNESP) Institute of Science and Technology São José Dos Campos Rodovia Presidente Dutra, Km 137, 8 Eugenio de MeloBrazilian Nuclear Energy CommissionUniversidade Estadual Paulista (Unesp)University of Vale Do ItajaíFerrari, Carla RolimDo Nascimento, Heliana De Azevedo FrancoRodgher, Suzelei [UNESP]Almeida, TitoBruschi, Armando LuizNascimento, Marcos Roberto Lopes DoBonifácio, Rodrigo Leandro2018-12-11T16:50:12Z2018-12-11T16:50:12Z2017-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1038/s41598-017-14100-wScientific Reports, v. 7, n. 1, 2017.2045-2322http://hdl.handle.net/11449/17030710.1038/s41598-017-14100-w2-s2.0-850322000652-s2.0-85032200065.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScientific Reports1,533info:eu-repo/semantics/openAccess2023-12-18T06:16:46Zoai:repositorio.unesp.br:11449/170307Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-18T06:16:46Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effects of the discharge of uranium mining effluents on the water quality of the reservoir: An integrative chemical and ecotoxicological assessment |
title |
Effects of the discharge of uranium mining effluents on the water quality of the reservoir: An integrative chemical and ecotoxicological assessment |
spellingShingle |
Effects of the discharge of uranium mining effluents on the water quality of the reservoir: An integrative chemical and ecotoxicological assessment Ferrari, Carla Rolim |
title_short |
Effects of the discharge of uranium mining effluents on the water quality of the reservoir: An integrative chemical and ecotoxicological assessment |
title_full |
Effects of the discharge of uranium mining effluents on the water quality of the reservoir: An integrative chemical and ecotoxicological assessment |
title_fullStr |
Effects of the discharge of uranium mining effluents on the water quality of the reservoir: An integrative chemical and ecotoxicological assessment |
title_full_unstemmed |
Effects of the discharge of uranium mining effluents on the water quality of the reservoir: An integrative chemical and ecotoxicological assessment |
title_sort |
Effects of the discharge of uranium mining effluents on the water quality of the reservoir: An integrative chemical and ecotoxicological assessment |
author |
Ferrari, Carla Rolim |
author_facet |
Ferrari, Carla Rolim Do Nascimento, Heliana De Azevedo Franco Rodgher, Suzelei [UNESP] Almeida, Tito Bruschi, Armando Luiz Nascimento, Marcos Roberto Lopes Do Bonifácio, Rodrigo Leandro |
author_role |
author |
author2 |
Do Nascimento, Heliana De Azevedo Franco Rodgher, Suzelei [UNESP] Almeida, Tito Bruschi, Armando Luiz Nascimento, Marcos Roberto Lopes Do Bonifácio, Rodrigo Leandro |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Brazilian Nuclear Energy Commission Universidade Estadual Paulista (Unesp) University of Vale Do Itajaí |
dc.contributor.author.fl_str_mv |
Ferrari, Carla Rolim Do Nascimento, Heliana De Azevedo Franco Rodgher, Suzelei [UNESP] Almeida, Tito Bruschi, Armando Luiz Nascimento, Marcos Roberto Lopes Do Bonifácio, Rodrigo Leandro |
description |
The water quality of the Antas reservoir, under the influence of treated effluents from a uranium mining area Ore Treatment Unit (UTM) with acid mine drainage, was investigated. Samples were collected every 3 months from the Antas reservoir (CAB, P41-E and P14) and from the UTM (P41-S). Chemical and acute 48 h toxicity tests using Ceriodaphnia silvestrii and Daphnia magna analyses were carried out to determine the potential environmental risks due to discharging the uranium mine effluents into this reservoir. All the water samples taken from the treated effluent (P41-S) were positively correlated with elevated concentrations of uranium, manganese, aluminum, zinc and fluoride and with high electrical conductivity and pH values, being considered toxic. In November 2014 water samples taken from the reservoir showed chemical concentrations above the legislation limits for fluoride (4.5 mg L-1) uranium (0.082 mg L-1), sulfate (662.4 mg L-1), manganese (1.125 mg L-1) and aluminum (1.55 mg L-1), and in July 2015 for fluoride (2.55 mg L-1), uranium (0.01 mg L-1) and manganese (0.36 mg L-1). The extremely high average value for hardness (543.55 mg L-1) possibly reduced the toxicity potential of this chemical species mixture with respect to the bioindicators. The influence of the variation in water hardness on the toxicity of the cladocerans was discussed. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-01 2018-12-11T16:50:12Z 2018-12-11T16:50:12Z |
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/10.1038/s41598-017-14100-w Scientific Reports, v. 7, n. 1, 2017. 2045-2322 http://hdl.handle.net/11449/170307 10.1038/s41598-017-14100-w 2-s2.0-85032200065 2-s2.0-85032200065.pdf |
url |
http://dx.doi.org/10.1038/s41598-017-14100-w http://hdl.handle.net/11449/170307 |
identifier_str_mv |
Scientific Reports, v. 7, n. 1, 2017. 2045-2322 10.1038/s41598-017-14100-w 2-s2.0-85032200065 2-s2.0-85032200065.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Scientific Reports 1,533 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
Scopus 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 |
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1799965326014676992 |