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Rojo, J. ; Oteros, J. ; Picornell, A.* ; Ruëff, F.* ; Werchan, B.* ; Werchan, M.* ; Bergmann, K.C.* ; Schmidt-Weber, C.B. ; Buters, J.T.M.

Land-use and height of pollen sampling affect pollen exposure in Munich, Germany.

Atmosphere 11:145 (2020)
Publ. Version/Full Text Research data DOI
Open Access Gold
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Airborne pollen concentrations vary depending on the location of the pollen trap with respect to the pollen sources. Two Hirst-type pollen traps were analyzed within the city of Munich (Germany): one trap was located 2 m above ground level (AGL) and the other one at rooftop (35 m AGL), 4.2 km apart. In general, 1.4 +/- 0.5 times higher pollen amounts were measured by the trap located at ground level, but this effect was less than expected considering the height difference between the traps. Pollen from woody trees such as Alnus, Betula, Corylus, Fraxinus, Picea, Pinus and Quercus showed a good agreement between the traps in terms of timing and intensity. Similar amounts of pollen were recorded in the two traps when pollen sources were more abundant outside of the city. In contrast, pollen concentrations from Cupressaceae/Taxaceae, Carpinus and Tilia were influenced by nearby pollen sources. The representativeness of both traps for herbaceous pollen depended on the dispersal capacity of the pollen grains, and in the case of Poaceae pollen, nearby pollen sources may influence the pollen content in the air. The timing of the pollen season was similar for both sites; however, the season for some pollen types ended later at ground level probably due to resuspension processes that would favor recirculation of pollen closer to ground level. We believe measurements from the higher station provides a picture of background pollen levels representative of a large area, to which local sources add additional and more variable pollen amounts.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Aerobiology ; Allergy Risk ; Pollen ; Height ; Monitoring ; Network ; Sources; Airborne Pollen; Wind Direction; Climate-change; Urban; Allergy; Pollutants; Areas; City; Gis
ISSN (print) / ISBN 2073-4433
e-ISSN 2073-4433
Journal Atmosphere
Quellenangaben Volume: 11, Issue: 2, Pages: , Article Number: 145 Supplement: ,
Publisher MDPI
Publishing Place St Alban-anlage 66, Ch-4052 Basel, Switzerland
Non-patent literature Publications
Reviewing status Peer reviewed