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Drivers of the release of the allergens Bet v 1 and Phl p 5 from birch and grass pollen.

Environ. Res. 214:113987 (2022)
Verlagsversion Forschungsdaten DOI
Open Access Gold (Paid Option)
Creative Commons Lizenzvertrag
The drivers affecting the Pollen Allergen Potency (PAP, amount of allergen released per pollen) are sparsely known. Betula and Poaceae airborne pollen are the two main allergenic pollen in the World. Airborne pollen and their allergens Bet v 1 and Phl p 5 were simultaneously measured from 2010 to 2015 in Davos (Switzerland) and Munich (Germany) by using volumetric traps and ChemVol cascade impactors. Daily variations in PAP were analysed in PM>10 and PM2.5-10 air fractions and generalized additive models were created to explain which factors determine PAP, including meteorological parameters and inorganic pollutants. 87.1 ± 13.9% of Bet v 1 and 88.8 ± 15.5% of Phl p 5 was detected in the fraction PM>10 where most pollen grains were collected. Significantly higher PAP for grasses (3.5 ± 1.9 pg Phl p 5/pollen grain) were observed in Munich than in Davos (2.4 ± 1.5 pg/pollen grain, p < 0.001), but not for Betula (2.5 ± 1.6 pg Bet v 1/pollen grain in Munich and 2.3 ± 1.7 in Davos, N.S.). PAP varied between days, years and location, and increased along the pollen season for Poaceae, but remaining constant for Betula. Free allergens (allergens observed in the fraction with limited pollen, PM2.5- 10) were recorded mostly at the beginning or at the end of the pollen season, being linked to higher humidity and rainy days. Also, PAP was higher when the airborne pollen concentrations increased rapidly after one day of low/moderate levels. Our findings show that pollen exposure explains allergen exposure only to a limited extend, and that day in the season, geographic location and some weather conditions need to be considered also to explain symptoms of allergic individuals.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Allergenicity Drivers ; Allergens ; Bet V 1 ; Phl P 5 ; Pollen Allergen Potency ; Pollutants
ISSN (print) / ISBN 0013-9351
e-ISSN 1096-0953
Quellenangaben Band: 214, Heft: Pt 3, Seiten: , Artikelnummer: 113987 Supplement: ,
Verlag Elsevier
Verlagsort San Diego, Calif.
Begutachtungsstatus Peer reviewed
Institut(e) Institute for Allergy Research (IAF)
Institute of Environmental Medicine (IEM)
Förderungen Deutscher Wetterdienst
ederal Office of Meteorology and Climatology
Grisons Agency for Nature and Environment
Kühne foundation
Landesamt für Umwelt
Australian National University
Christine Kühne – Center for Allergy Research and Education