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dc.contributor.authorAfanou, Komlavi Anani
dc.contributor.authorStraumfors, Anne
dc.contributor.authorSkogstad, Asbjørn
dc.contributor.authorSkaar, Ida
dc.contributor.authorHjeljord, Linda
dc.contributor.authorSkare, Øivind
dc.contributor.authorGreen, Brett James
dc.contributor.authorTronsmo, Arne
dc.contributor.authorWijnand, Eduard
dc.date.accessioned2024-09-23T12:58:51Z
dc.date.available2024-09-23T12:58:51Z
dc.date.created2015-05-13T09:41:21Z
dc.date.issued2015
dc.identifier.citationAerosol Science and Technology. 2015, 49 (6), 423-435.
dc.identifier.issn0278-6826
dc.identifier.urihttps://hdl.handle.net/11250/3153804
dc.description.abstractFungal aerosols consist of spores and fragments with diverse array of morphologies; however, the size, shape, and origin of the constituents require further characterization. In this study, we characterize the profile of aerosols generated from Aspergillus fumigatus, A. versicolor, and Penicillium chrysogenum grown for 8 weeks on gypsum boards. Fungal particles were aerosolized at 12 and 20 L min−1 using the Fungal Spore Source Strength Tester (FSSST) and the Stami particle generator (SPG). Collected particles were analyzed with field emission scanning electron microscopy (FESEM). We observed spore particle fraction consisting of single spores and spore aggregates in four size categories, and a fragment fraction that contained submicronic fragments and three size categories of larger fragments. Single spores dominated the aerosols from A. fumigatus (median: 53%), while the submicronic fragment fraction was the highest in the aerosols collected from A. versicolor (median: 34%) and P. chrysogenum (median: 31%). Morphological characteristics showed near spherical particles that were only single spores, oblong particles that comprise some spore aggregates and fragments (<3.5 μm), and fiber-like particles that regroup chained spore aggregates and fragments (>3.5 μm). Further, the near spherical particles dominated the aerosols from A. fumigatus (median: 53%), while oblong particles were dominant in the aerosols from A. versicolor (68%) and P. chrysogenum (55%). Fiber-like particles represented 21% and 24% of the aerosols from A. versicolor and P. chrysogenum, respectively. This study shows that fungal particles of various size, shape, and origin are aerosolized, and supports the need to include a broader range of particle types in fungal exposure assessment.
dc.description.abstractProfile and morphology of fungal aerosols characterized by field emission scanning electron microscopy (FESEM)
dc.language.isoeng
dc.titleProfile and morphology of fungal aerosols characterized by field emission scanning electron microscopy (FESEM)
dc.title.alternativeProfile and morphology of fungal aerosols characterized by field emission scanning electron microscopy (FESEM)
dc.typePeer reviewed
dc.typeJournal article
dc.description.versionpublishedVersion
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.doi10.1080/02786826.2015.1040486
dc.identifier.cristin1242220
dc.source.journalAerosol Science and Technology
dc.source.volume49
dc.source.issue6
dc.source.pagenumber423-435


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