Toxicity assessment of arsenic and cobalt in the presence of aquatic humic substances of different molecular sizes

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dc.contributor.authorWatanabe, Claudia Hitomi [UNESP]
dc.contributor.authorCosta Monteiro, Adnivia Santos [UNESP]
dc.contributor.authorJeunon Gontijo, Erik Sartori [UNESP]
dc.contributor.authorLira, Vivian Silva [UNESP]
dc.contributor.authorBueno, Carolina de Castro [UNESP]
dc.contributor.authorKumar, Nirmal Tej [UNESP]
dc.contributor.authorFracacio, Renata [UNESP]
dc.contributor.authorRosa, Andre Henrique [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-11-26T15:43:46Z
dc.date.available2018-11-26T15:43:46Z
dc.date.issued2017-05-01
dc.description.abstractusing environmentally relevant concentrations of arsenic and cobalt were conducted both in the presence and absence of aquatic humic substances (AHS) and the fractions of different molecular sizes in the range of (< 5, 5-10;10-30; 30-100 and > 100kDa) using the microcrustacean Ceriodaphnia dubia. AHS together with arsenic reduced the toxicity, and the toxicity decreased in fractions of larger molecular size AHS. Despite the presence of cobalt, the reduction in toxicity was not observed and that depended on the molecular size of AHS. There was a trend of enhanced toxicity for Co in fractions of larger molecular sizes, opposed to that found for arsenic. Thus, the humic substances alter toxicity of trace elements, and this effect varies depending on the size of the humic substancesen
dc.description.affiliationSao Paulo State Univ UNESP, Inst Sci & Technol, Campus Sorocaba,Av Tres Marco,511-Alto Boa Vista, BR-18087180 Sorocaba, SP, Brazil
dc.description.affiliationSao Paulo State Univ UNESP, Inst Chem, Campus Araraquara,Av. Prof Francisco Degni,55-Jar, BR-14800060 Araraquara, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ UNESP, Inst Sci & Technol, Campus Sorocaba,Av Tres Marco,511-Alto Boa Vista, BR-18087180 Sorocaba, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ UNESP, Inst Chem, Campus Araraquara,Av. Prof Francisco Degni,55-Jar, BR-14800060 Araraquara, SP, Brazil
dc.description.sponsorshipR&D project at UNESP, Sorocaba, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipNational Research and Development Council (CNN)
dc.description.sponsorshipIdFAPESP: 2012./19580-4
dc.description.sponsorshipIdFAPESP: 2014/20979-4
dc.description.sponsorshipIdFAPESP: 2013/24168-8
dc.description.sponsorshipIdFAPESP: 2016/08215-4
dc.format.extent1-8
dc.identifierhttp://dx.doi.org/10.1016/j.econv.2017.01.018
dc.identifier.citationEcotoxicology And Environmental Safety. San Diego: Academic Press Inc Elsevier Science, v. 139, p. 1-8, 2017.
dc.identifier.doi10.1016/j.econv.2017.01.018
dc.identifier.fileWOS000396640600001.pdf
dc.identifier.issn0147-6513
dc.identifier.urihttp://hdl.handle.net/11449/159435
dc.identifier.wosWOS:000396640600001
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofEcotoxicology And Environmental Safety
dc.relation.ispartofsjr1,201
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectHumic substances
dc.subjectToxicity
dc.subjectArsenic
dc.subjectCobalt
dc.subjectC. dubia
dc.subjectMolecular size
dc.titleToxicity assessment of arsenic and cobalt in the presence of aquatic humic substances of different molecular sizesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes5228846314663888[8]
unesp.author.orcid0000-0002-2042-018X[8]

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