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Exploring the Interaction between Microplastics, Polycyclic Aromatic Hydrocarbons and Biofilms in Freshwater

2020-10-13Journal article Restricted access
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dc.contributor.authorJosé, Sílvia
dc.contributor.authorJordao, Luisa
dc.date.accessioned2020-10-27T18:59:46Z
dc.date.available2020-10-27T18:59:46Z
dc.date.issued2020-10-13
dc.description.abstractWater pollution by non-biodegradable materials such as plastics is a major source of concern. Here, we investigated the ability of polyethylene terephthalate (PET), high density polyethylene (HDPE), low density polyethylene (LDPE), polypropylene (PP) and polystyrene (PS) microplastics (MPs-4mm) to adsorb benzo(a)pyrene (BaP) and pyrene (Pyr) in freshwater after 3 and 30 days. BaP was more adsorbed than Pyr with PP and PS being the most and least efficient adsorbents of BaP, respectively. In mixed solutions, the differences in PAHs adsorption are smoother than in pure solutions, and an increase in adsorbed PAHs half-life has been observed. In parallel, the ability of bacterial species isolated from freshwater responsible for infections in humans (Escherichia coli, Klebsiella pneumoniae and Aeromonas sobria) to assemble biofilms on plastics was evaluated. Biofilm assembly increased with time (1 to 3months) being possible to observe biofilms on LDPE, HDPE and PS. For PET and PP only after 3months on fragments of the original MPs was possible to observe attached bacteria. Exposure to 100 mg/mL PAHs (either isolated or mixed) during 1 month significantly decreased bacterial persistence (p<.01) compared to unexposed bacteria.pt_PT
dc.description.sponsorship2018DSA1555- Mini projeto DSApt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPolycycl Aromat Compd. 2020. Epub 13 Oct 2020. doi: 10.1080/10406638.2020.1830809pt_PT
dc.identifier.doi10.1080/10406638.2020.1830809pt_PT
dc.identifier.issn1040-6638
dc.identifier.urihttp://hdl.handle.net/10400.18/7221
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherTaylor and Francis/ Society for Polycyclic Aromatic Compoundspt_PT
dc.relation.publisherversionhttps://www.tandfonline.com/doi/abs/10.1080/10406638.2020.1830809?journalCode=gpol20pt_PT
dc.subjectBiofilmspt_PT
dc.subjectFreshwaterpt_PT
dc.subjectMicroplasticspt_PT
dc.subjectPolycyclic Aromatic Hydrocarbonspt_PT
dc.subjectScanning Electron Microscopypt_PT
dc.subjectWater Pollutionpt_PT
dc.subjectÁgua e Solopt_PT
dc.titleExploring the Interaction between Microplastics, Polycyclic Aromatic Hydrocarbons and Biofilms in Freshwaterpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage12pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titlePolycyclic Aromatic Compoundspt_PT
rcaap.rightsembargoedAccesspt_PT
rcaap.typearticlept_PT

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