Variability and geographical origin of five years airborne fungal spore concentrations measured at Saclay, France from 2014 to 2018

dc.contributor.authorSarda-Estève, Roland
dc.contributor.authorBaisnée, Dominique
dc.contributor.authorGuinot, Benjamin
dc.contributor.authorSodeau, John
dc.contributor.authorO'Connor, David
dc.contributor.authorBelmonte, Jordina
dc.contributor.authorBesancenot, Jean-Pierre
dc.contributor.authorPetit, Jean-Eudes
dc.contributor.authorThibaudon, Michel
dc.contributor.authorOliver, Gilles
dc.contributor.authorSindt, Charlotte
dc.contributor.authorGros, Valérie
dc.contributor.funderCommissariat à l'Énergie Atomique et aux Énergies Alternativesen
dc.contributor.funderSTAE Foundation IRT Saint-Exupéryen
dc.description.abstractAirborne fungal spores (AFS) represent the major fraction of primary biological aerosol particles (PBAPs), and they are studied worldwide largely due to their important role within the Earth system. They have an impact on climate and human health, and they contribute to the propagation of diseases. As their presence in the air depends largely on studied ecosystems, a spore trap was used to monitor their atmospheric concentrations from 2014 to December 2018 in Saclay, a suburban area in the megacity of Paris. The main objective of this work was: (1) to understand the atmospheric variability of AFS in relation to different variables such as meteorological factors, agricultural practice, and (2) to identify their geographical origin by using a source receptor model. During our period of observation, 30 taxa have been identified under a light microscope. In order of importance, Ascospores, Cladosporium, Basidiospores, Tilletiopsis, Alternaria were found to be the most abundant types respectively (50.8%, 33.6%, 7.6%, 1.8%, and 1.3%) accounting for 95% of the atmospheric concentrations. We observed a general decrease associated with a strong interannual variability. A bimodal seasonal cycle was identified with a first maximum in July and a second in October. The main parameters driving the atmospheric concentration are temperature and precipitation. The daily variability is strongly activated by successive periods of hot weather and rainfall, multiplying the concentration by a factor of 1000 in less than 12 hours. Results from the source receptor model ZeFir point out unambiguous different origins of AFS due to specific sources impacting the observation site. Our study also indicated that a hydrological stress has a direct effect on the daily concentrations. This last point should be taken into account for every stressed ecosystem studied in a global warming context. This is particularly important for Mediterranean areas where water is a key control of the growth and dispersion of fungal spores.en
dc.description.sponsorshipEnergies and Atomic Energy Commission (CEA) (Grant No. D34); STAE Foundation IRT Saint-Exupéry (Grant name: FUNGONAUTE)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.identifier.citationSarda-Estève, R., Baisnée, D., Guinot, B., Sodeau, J., O’Connor, D., Belmonte, J., Besancenot, J.-P., Petit, J.-E., Thibaudon, M., Oliver, G., Sindt, C. and Gros, V. (2019) 'Variability and Geographical Origin of Five Years Airborne Fungal Spore Concentrations Measured at Saclay, France from 2014 to 2018', Remote Sensing, 11(14), 1671. (29pp.) DOI:10.3390/rs11141671en
dc.identifier.journaltitleRemote Sensingen
dc.publisherMDPI AGen
dc.rights©2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
dc.subjectAirborne fungal sporesen
dc.subjectMeteorological factorsen
dc.subjectSource receptor modelen
dc.subjectPathogen transferen
dc.subjectPolluted environmentsen
dc.subjectHydrological stressen
dc.titleVariability and geographical origin of five years airborne fungal spore concentrations measured at Saclay, France from 2014 to 2018en
dc.typeArticle (peer-reviewed)en
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