Coal extraction causes sediment toxicity in aquatic environments in Santa Catarina, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Ambiente & Água |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2017000400591 |
Resumo: | Abstract This study evaluated water parameters in ponds affected by coal extraction. Allium cepa assay was used to measure genotoxicity/mutagenicity of the sediment. Samples were collected from four ponds in the southern state of Santa Catarina. Water temperature, pH, dissolved oxygen, conductivity and turbidity were measured. Sediments were analyzed for heavy metals. Elutriate samples were prepared at a ratio of 1:4 sediment:water. Allium cepa bulbs were placed in samples prepared from each pond, with ultrapure water used as negative control and methyl methane sulfonate as positive control. Root length, mitotic index, chromosomal aberrations, micronuclei, and nuclear abnormalities were measured. The pH of two ponds, as well as electrical conductivity and dissolved oxygen of all ponds were below the minimum limits set by Brazilian regulation. All heavy metals analyzed were found in all sediment samples, but only Cd concentration was above the legal limit set by Brazilian law. Allium cepa root growth for samples from Ponds 1, 2, and 4 was significantly lower than the negative control. Meristematic cells exposed to elutriate samples showed no significant changes in cell division. There was a significant increase in total chromosomal aberrations in all treated samples in comparison with the negative control. This study demonstrates that even low concentrations of heavy metals can damage exposed biota, possibly due to synergistic effects. We also found the A. cepa bioassay to be a simple and useful tool for genotoxicity/mutagenicity analyses, and recommend its use for environmental monitoring and management in areas influenced by mining activities. |
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Coal extraction causes sediment toxicity in aquatic environments in Santa Catarina, Brazilcell damagegenotoxic damagetoxic metals.Abstract This study evaluated water parameters in ponds affected by coal extraction. Allium cepa assay was used to measure genotoxicity/mutagenicity of the sediment. Samples were collected from four ponds in the southern state of Santa Catarina. Water temperature, pH, dissolved oxygen, conductivity and turbidity were measured. Sediments were analyzed for heavy metals. Elutriate samples were prepared at a ratio of 1:4 sediment:water. Allium cepa bulbs were placed in samples prepared from each pond, with ultrapure water used as negative control and methyl methane sulfonate as positive control. Root length, mitotic index, chromosomal aberrations, micronuclei, and nuclear abnormalities were measured. The pH of two ponds, as well as electrical conductivity and dissolved oxygen of all ponds were below the minimum limits set by Brazilian regulation. All heavy metals analyzed were found in all sediment samples, but only Cd concentration was above the legal limit set by Brazilian law. Allium cepa root growth for samples from Ponds 1, 2, and 4 was significantly lower than the negative control. Meristematic cells exposed to elutriate samples showed no significant changes in cell division. There was a significant increase in total chromosomal aberrations in all treated samples in comparison with the negative control. This study demonstrates that even low concentrations of heavy metals can damage exposed biota, possibly due to synergistic effects. We also found the A. cepa bioassay to be a simple and useful tool for genotoxicity/mutagenicity analyses, and recommend its use for environmental monitoring and management in areas influenced by mining activities.Instituto de Pesquisas Ambientais em Bacias Hidrográficas2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2017000400591Revista Ambiente & Água v.12 n.4 2017reponame:Revista Ambiente & Águainstname:Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)instacron:IPABHI10.4136/ambi-agua.2036info:eu-repo/semantics/openAccessFreitas,Lucimaira Amaral deRambo,Cassiano LazarottoFranscescon,FranciniBarros,Antônio Felipe Primon deLucca,Guilherme dos Santos DeSiebel,Anna MariaScapinello,JaquelineLucas,Elaine MariaMagro,Jacir Daleng2017-07-06T00:00:00Zoai:scielo:S1980-993X2017000400591Revistahttp://www.ambi-agua.net/PUBhttps://old.scielo.br/oai/scielo-oai.php||ambi.agua@gmail.com1980-993X1980-993Xopendoar:2017-07-06T00:00Revista Ambiente & Água - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)false |
dc.title.none.fl_str_mv |
Coal extraction causes sediment toxicity in aquatic environments in Santa Catarina, Brazil |
title |
Coal extraction causes sediment toxicity in aquatic environments in Santa Catarina, Brazil |
spellingShingle |
Coal extraction causes sediment toxicity in aquatic environments in Santa Catarina, Brazil Freitas,Lucimaira Amaral de cell damage genotoxic damage toxic metals. |
title_short |
Coal extraction causes sediment toxicity in aquatic environments in Santa Catarina, Brazil |
title_full |
Coal extraction causes sediment toxicity in aquatic environments in Santa Catarina, Brazil |
title_fullStr |
Coal extraction causes sediment toxicity in aquatic environments in Santa Catarina, Brazil |
title_full_unstemmed |
Coal extraction causes sediment toxicity in aquatic environments in Santa Catarina, Brazil |
title_sort |
Coal extraction causes sediment toxicity in aquatic environments in Santa Catarina, Brazil |
author |
Freitas,Lucimaira Amaral de |
author_facet |
Freitas,Lucimaira Amaral de Rambo,Cassiano Lazarotto Franscescon,Francini Barros,Antônio Felipe Primon de Lucca,Guilherme dos Santos De Siebel,Anna Maria Scapinello,Jaqueline Lucas,Elaine Maria Magro,Jacir Dal |
author_role |
author |
author2 |
Rambo,Cassiano Lazarotto Franscescon,Francini Barros,Antônio Felipe Primon de Lucca,Guilherme dos Santos De Siebel,Anna Maria Scapinello,Jaqueline Lucas,Elaine Maria Magro,Jacir Dal |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Freitas,Lucimaira Amaral de Rambo,Cassiano Lazarotto Franscescon,Francini Barros,Antônio Felipe Primon de Lucca,Guilherme dos Santos De Siebel,Anna Maria Scapinello,Jaqueline Lucas,Elaine Maria Magro,Jacir Dal |
dc.subject.por.fl_str_mv |
cell damage genotoxic damage toxic metals. |
topic |
cell damage genotoxic damage toxic metals. |
description |
Abstract This study evaluated water parameters in ponds affected by coal extraction. Allium cepa assay was used to measure genotoxicity/mutagenicity of the sediment. Samples were collected from four ponds in the southern state of Santa Catarina. Water temperature, pH, dissolved oxygen, conductivity and turbidity were measured. Sediments were analyzed for heavy metals. Elutriate samples were prepared at a ratio of 1:4 sediment:water. Allium cepa bulbs were placed in samples prepared from each pond, with ultrapure water used as negative control and methyl methane sulfonate as positive control. Root length, mitotic index, chromosomal aberrations, micronuclei, and nuclear abnormalities were measured. The pH of two ponds, as well as electrical conductivity and dissolved oxygen of all ponds were below the minimum limits set by Brazilian regulation. All heavy metals analyzed were found in all sediment samples, but only Cd concentration was above the legal limit set by Brazilian law. Allium cepa root growth for samples from Ponds 1, 2, and 4 was significantly lower than the negative control. Meristematic cells exposed to elutriate samples showed no significant changes in cell division. There was a significant increase in total chromosomal aberrations in all treated samples in comparison with the negative control. This study demonstrates that even low concentrations of heavy metals can damage exposed biota, possibly due to synergistic effects. We also found the A. cepa bioassay to be a simple and useful tool for genotoxicity/mutagenicity analyses, and recommend its use for environmental monitoring and management in areas influenced by mining activities. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-08-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2017000400591 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2017000400591 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.4136/ambi-agua.2036 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas |
publisher.none.fl_str_mv |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas |
dc.source.none.fl_str_mv |
Revista Ambiente & Água v.12 n.4 2017 reponame:Revista Ambiente & Água instname:Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI) instacron:IPABHI |
instname_str |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI) |
instacron_str |
IPABHI |
institution |
IPABHI |
reponame_str |
Revista Ambiente & Água |
collection |
Revista Ambiente & Água |
repository.name.fl_str_mv |
Revista Ambiente & Água - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI) |
repository.mail.fl_str_mv |
||ambi.agua@gmail.com |
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1752129749994438656 |