Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.22/13860 |
Resumo: | Laboratories produce a large volume of wastewaters containing different chemical indicators, organic species for which there is no complete knowledge about their effects in the aquatic environment. The aim of this work was to evaluate the ecotoxicity of four chemical indicator substances commonly used in titrations (sodium diphenylamine-4-sulfonate, phenolphthalein, methyl orange, and eriochrome black T) by applying two distinct bioassays that evaluated the growth inhibition of the microalga Chlorella vulgaris and the acute immobilization of the microcrustacean Daphnia magna. All the indicators showed growth inhibition rates in the chronic test performed with the alga C. vulgaris. Only phenolphthalein and eriochrome black-T showed high immobilization rates on the acute test for D. magna. C. vulgaris showed higher sensitivity to the chemical indicators tested than D. magna. Eriochrome black T was the most toxic for both test organisms and, according to the effective concentration that causes inhibition on 50% of C. vulgaris population, it can be considered as “highly toxic to aquatic organisms”. Phenolphthalein and methyl orange may be classified as “toxic to aquatic organisms” and sodium diphenylamine-4-sulfonate is the least toxic, only being considered as “harmful”. This work increases the awareness of the hazardous effects of these chemical indicators and reinforces the need of improved solutions to manage and treat laboratory effluents. |
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Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewatersChemical indicatorsChlorella vulgarisDaphnia magnaEcotoxicityEnvironmentLaboratory wastewatersLaboratories produce a large volume of wastewaters containing different chemical indicators, organic species for which there is no complete knowledge about their effects in the aquatic environment. The aim of this work was to evaluate the ecotoxicity of four chemical indicator substances commonly used in titrations (sodium diphenylamine-4-sulfonate, phenolphthalein, methyl orange, and eriochrome black T) by applying two distinct bioassays that evaluated the growth inhibition of the microalga Chlorella vulgaris and the acute immobilization of the microcrustacean Daphnia magna. All the indicators showed growth inhibition rates in the chronic test performed with the alga C. vulgaris. Only phenolphthalein and eriochrome black-T showed high immobilization rates on the acute test for D. magna. C. vulgaris showed higher sensitivity to the chemical indicators tested than D. magna. Eriochrome black T was the most toxic for both test organisms and, according to the effective concentration that causes inhibition on 50% of C. vulgaris population, it can be considered as “highly toxic to aquatic organisms”. Phenolphthalein and methyl orange may be classified as “toxic to aquatic organisms” and sodium diphenylamine-4-sulfonate is the least toxic, only being considered as “harmful”. This work increases the awareness of the hazardous effects of these chemical indicators and reinforces the need of improved solutions to manage and treat laboratory effluents.Repositório Científico do Instituto Politécnico do PortoSilva, A.Santos, Lúcia H.M.L.M.Antão, C.Delerue-Matos, CristinaFigueiredo, Sónia2019-06-06T09:48:26Z20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/13860engSilva A., Santos L.H.M.L.M., Antão C., Delerue-Matos C. and Figueiredo S.A. (2017), Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters, Global NEST Journal, 19(1), 94-9910.30955/gnj.002051info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-13T12:56:04Zoai:recipp.ipp.pt:10400.22/13860Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:33:42.251097Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters |
title |
Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters |
spellingShingle |
Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters Silva, A. Chemical indicators Chlorella vulgaris Daphnia magna Ecotoxicity Environment Laboratory wastewaters |
title_short |
Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters |
title_full |
Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters |
title_fullStr |
Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters |
title_full_unstemmed |
Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters |
title_sort |
Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters |
author |
Silva, A. |
author_facet |
Silva, A. Santos, Lúcia H.M.L.M. Antão, C. Delerue-Matos, Cristina Figueiredo, Sónia |
author_role |
author |
author2 |
Santos, Lúcia H.M.L.M. Antão, C. Delerue-Matos, Cristina Figueiredo, Sónia |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Repositório Científico do Instituto Politécnico do Porto |
dc.contributor.author.fl_str_mv |
Silva, A. Santos, Lúcia H.M.L.M. Antão, C. Delerue-Matos, Cristina Figueiredo, Sónia |
dc.subject.por.fl_str_mv |
Chemical indicators Chlorella vulgaris Daphnia magna Ecotoxicity Environment Laboratory wastewaters |
topic |
Chemical indicators Chlorella vulgaris Daphnia magna Ecotoxicity Environment Laboratory wastewaters |
description |
Laboratories produce a large volume of wastewaters containing different chemical indicators, organic species for which there is no complete knowledge about their effects in the aquatic environment. The aim of this work was to evaluate the ecotoxicity of four chemical indicator substances commonly used in titrations (sodium diphenylamine-4-sulfonate, phenolphthalein, methyl orange, and eriochrome black T) by applying two distinct bioassays that evaluated the growth inhibition of the microalga Chlorella vulgaris and the acute immobilization of the microcrustacean Daphnia magna. All the indicators showed growth inhibition rates in the chronic test performed with the alga C. vulgaris. Only phenolphthalein and eriochrome black-T showed high immobilization rates on the acute test for D. magna. C. vulgaris showed higher sensitivity to the chemical indicators tested than D. magna. Eriochrome black T was the most toxic for both test organisms and, according to the effective concentration that causes inhibition on 50% of C. vulgaris population, it can be considered as “highly toxic to aquatic organisms”. Phenolphthalein and methyl orange may be classified as “toxic to aquatic organisms” and sodium diphenylamine-4-sulfonate is the least toxic, only being considered as “harmful”. This work increases the awareness of the hazardous effects of these chemical indicators and reinforces the need of improved solutions to manage and treat laboratory effluents. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 2017-01-01T00:00:00Z 2019-06-06T09:48:26Z |
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://hdl.handle.net/10400.22/13860 |
url |
http://hdl.handle.net/10400.22/13860 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Silva A., Santos L.H.M.L.M., Antão C., Delerue-Matos C. and Figueiredo S.A. (2017), Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters, Global NEST Journal, 19(1), 94-99 10.30955/gnj.002051 |
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 |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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