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Environmental markers of plastics and microplastics

2024-04-29Artigo científico Acesso restrito
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datacite.subject.sdg14:Proteger a Vida Marinha
datacite.subject.sdg06:Água Potável e Saneamento
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorQ. V. da Costa, Camila
dc.contributor.authorAfonso, Inês I.
dc.contributor.authorCruz, Joana
dc.contributor.authorTeodosio, Maria
dc.contributor.authorJockusch, Steffen
dc.contributor.authorPower, Deborah Mary
dc.contributor.authorRamamurthy, Vaidhyanathan
dc.contributor.authorSilva, José Paulo da
dc.date.accessioned2026-04-14T09:08:16Z
dc.date.available2026-04-14T09:08:16Z
dc.date.issued2024-04-29
dc.description.abstractThe slow reaction rates to chemical and photo chemical degradation are well-known properties of plastics. However, large plastic surfaces exposed to environmental conditions release particles and compounds that affect ecosystems and human health. The aim of this work was to identify compounds associated with the degradation of polyethylene (PE), polystyrene (PS), and polyvinyl chloride (PVC) micro plastics (markers) on silica and sand and evaluate their use to screen microplastics on natural sand. Products were identified by using targeted and untargeted LC-HRMS analysis. All polymers underwent chemical oxidation on silica. PE released dicarboxylic acids (HO2C-(CH2)n-CO2H (n = 4−30), while PS released cis/ trans-chalcone, trans-dypnone, 3-phenylpropiophenone, and dibenzoylmethane. PVC released dicarboxylic acids and aromatic compounds. Upon irradiation, PE was stable while PS released the same compounds as under chemical oxidation but at lower yields. Under the above condition, PVC generated HO2C-[CH2−CHCl]n-CH2−CO2H and HO2C-[CH2−CHCl]n-CO2H (n = 2−19) dicarboxylic acids. The same products were detected on sand but at a lower concentration than on silica due to better retention within the pores. Detection of markers of PE and PS on natural sand allowed us to screen microplastics by following a targeted analysis. Markers of PVC were not detected before or after thermal/photo-oxidation due to the low release of compounds and limitations associated with surface exposure/penetration of radiation.eng
dc.identifier.doi10.1021/acs.est.3c09662
dc.identifier.eissn1520-5851
dc.identifier.issn0013-936X
dc.identifier.urihttp://hdl.handle.net/10400.1/28664
dc.language.isoeng
dc.peerreviewedyes
dc.publisherAmerican Chemical Society
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relation.ispartofEnvironmental Science & Technology
dc.rights.uriN/A
dc.subjectPolyethylene
dc.subjectPolystyrene
dc.subjectPolyvinyl chloride
dc.subjectThermal oxidation
dc.subjectPhoto-oxidation
dc.subjectProduct distributions
dc.subjectSand surface
dc.titleEnvironmental markers of plastics and microplasticseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDB/04326/2020
oaire.awardNumberUIDP/04326/2020
oaire.awardNumberLA/P/0101/2020
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.citation.endPage8898
oaire.citation.issue20
oaire.citation.startPage8889
oaire.citation.titleEnvironmental Science & Technology
oaire.citation.volume58
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameQ. V. da Costa
person.familyNameCruz
person.familyNameTeodosio
person.familyNamePower
person.familyNameSilva
person.givenNameCamila
person.givenNameJoana
person.givenNameMaria
person.givenNameDeborah Mary
person.givenNameJosé Paulo da
person.identifier2065549
person.identifier1810506
person.identifier.ciencia-id931B-9699-7396
person.identifier.ciencia-idDA1E-EE64-65FA
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.ciencia-id891A-8A44-3CAE
person.identifier.ciencia-id3413-C4F4-73F7
person.identifier.orcid0000-0001-8725-9100
person.identifier.orcid0000-0002-7191-9204
person.identifier.orcid0000-0002-0939-9885
person.identifier.orcid0000-0003-1366-0246
person.identifier.orcid0000-0002-6458-7328
person.identifier.ridI-9043-2017
person.identifier.ridB-5077-2013
person.identifier.ridA-4606-2008
person.identifier.scopus-author-id57194288680
person.identifier.scopus-author-id56196396700
person.identifier.scopus-author-id7101806760
person.identifier.scopus-author-id7201733236
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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