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Occurrence of persistent organic pollutants at Alqueva's surface water at touristic spots

2023Conference object Open access
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dc.contributor.authorRaposo, Ana
dc.contributor.authorMansilha, Catarina
dc.contributor.authorVeber, Alexander
dc.contributor.authorMelo, Armindo
dc.contributor.authorRodrigues, Joao
dc.contributor.authorMatias, Rui
dc.contributor.authorRebelo, Helena
dc.contributor.authorGrossinho, José
dc.contributor.authorCano, Manuela
dc.contributor.authorAlmeida, Cristina
dc.contributor.authorNogueira, Isabel
dc.date.accessioned2023-10-11T13:39:00Z
dc.date.available2023-10-11T13:39:00Z
dc.date.issued2023
dc.description.abstractFreshwater pollution is a huge concern. A study aiming to evaluate water quality and occurence of two groups of persistent environmental pollutants with similar chemical properties (polycyclic aromatic hydrocarbons-PAHs and microplastics -MPs) in Alqueva’s surface water was performed during 2021. Samples were collected at three spots related to touristic activities (two beaches and one marina) once by season. In addition, we assessed and compared the presence of biofilms on plastic and natural materials. Water quality was acceptable with a low eutrophication level. PAHs concentration levels were lower than the standard limits established for surface waters. PAHs profiles showed significant differences when comparing the dry and rainy seasons, with a higher number of different compounds detected in Spring. Low molecular weight compounds, usually associated with the atmospheric deposition and petroleum contamination, were more prevalent. MPs were detected in all samples except one during Winter. Eight polymers were detected being polyethylene the most frequent. Plastics were more prone to biofilm colonization than natural materials. In addition, biofilms detected on plastics were more complex with higher microbial diversity and richer in EPS. Among microbiota were identified microorganisms previously linked to plastic and PAHs detoxification suggesting the need for further studies to evaluate the viability of using biofilms as part of a green bioremediation strategy to mitigate water pollution.pt_PT
dc.description.sponsorshipThis project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreementNo 730872. INSA [2020DSA1756, 2020], Helmholtz- Zentrum Berlin für Materialien und Energie (Proposals No 202-10133-ST/ UR, 2020 and 212-10726-ST/UR, 2021).pt_PT
dc.description.versionN/Apt_PT
dc.identifier.urihttp://hdl.handle.net/10400.18/8698
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationConvenient Access to Light Sources Open to Innovation, Science and to the World
dc.subjectFreshwaterpt_PT
dc.subjectMicroplasticspt_PT
dc.subjectPAHspt_PT
dc.subjectPolycyclic Aromatic Hydrocarbonspt_PT
dc.subjectWater Qualitypt_PT
dc.subjectBiofilmspt_PT
dc.subjectÁgua e Solopt_PT
dc.titleOccurrence of persistent organic pollutants at Alqueva's surface water at touristic spotspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleConvenient Access to Light Sources Open to Innovation, Science and to the World
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/730872/EU
oaire.citation.conferencePlaceToronto, Canadápt_PT
oaire.citation.title66th Annual Conference on Great Lake Research (IAGLR 2023) "Adapting to Climate Change", 8-12 May 2023pt_PT
oaire.fundingStreamH2020
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isProjectOfPublication0eea5c0a-717c-4c26-8940-c45ea785efb2
relation.isProjectOfPublication.latestForDiscovery0eea5c0a-717c-4c26-8940-c45ea785efb2

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