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Ecotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaters

dc.contributor.authorSilva, A.
dc.contributor.authorSantos, Lúcia H.M.L.M.
dc.contributor.authorAntão, C.
dc.contributor.authorDelerue-Matos, Cristina
dc.contributor.authorFigueiredo, Sónia
dc.date.accessioned2019-06-06T09:48:26Z
dc.date.available2019-06-06T09:48:26Z
dc.date.issued2017
dc.description.abstractLaboratories 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.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSilva 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), 94-99pt_PT
dc.identifier.doi10.30955/gnj.002051pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/13860
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relation.publisherversionhttps://journal.gnest.org/publication/gnest_02051pt_PT
dc.subjectChemical indicatorspt_PT
dc.subjectChlorella vulgarispt_PT
dc.subjectDaphnia magnapt_PT
dc.subjectEcotoxicitypt_PT
dc.subjectEnvironmentpt_PT
dc.subjectLaboratory wastewaterspt_PT
dc.titleEcotoxicological evaluation of chemical indicator substances present as micropollutants in laboratory wastewaterspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage99pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage94pt_PT
oaire.citation.titleGlobal NEST Journalpt_PT
oaire.citation.volume19pt_PT
person.familyNameSantos
person.familyNameDelerue-Matos
person.familyNameFigueiredo
person.givenNameLúcia
person.givenNameCristina
person.givenNameSónia
person.identifier554739
person.identifier1104854
person.identifier.ciencia-id201F-83C4-2FAF
person.identifier.ciencia-id9A1A-43FB-5C27
person.identifier.ciencia-id6915-A6F2-F8A1
person.identifier.orcid0000-0002-7013-8852
person.identifier.orcid0000-0002-3924-776X
person.identifier.orcid0000-0001-8548-2528
person.identifier.ridK-6784-2013
person.identifier.ridD-4990-2013
person.identifier.ridD-8292-2013
person.identifier.scopus-author-id55947204900
person.identifier.scopus-author-id6603741848
person.identifier.scopus-author-id7004125737
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication55aca6a3-11aa-4e3e-868b-dce605cd585e
relation.isAuthorOfPublication09f6a7bd-2f15-42b0-adc5-04bd22210519
relation.isAuthorOfPublication692766a7-ed88-44e8-aed6-13d3ff5a07b0
relation.isAuthorOfPublication.latestForDiscovery55aca6a3-11aa-4e3e-868b-dce605cd585e

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