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Ultrafine particles over Germany – an aerial survey

Junkermann, Wolfgang; Vogel, Bernhard; Bangert, Max

Abstract (englisch): Ultrafine particles in the atmosphere may have important climate and health effects. As they are below visible size and not visible for remote sensing techniques, the majority of observations thus come from ground-based measurements. Some of those observations indicate elevated sources for ultrafine particles. Here we present for the first time airborne measurements of number concentration and size distributions of ultrafine particles along defined flight paths across Germany, allowing to derive background concentrations and to identify major single sources. A significant impact of fossil fuel–related emissions on background and maximum concentrations was found. Maxima reaching up to 90 000 particles cm−3 were encountered in plumes of single large sources extending over more than 200 km. Modelling shows that about 10–40 % of Germany were continuously affected by such plumes. Regional-scale transport and boundary layer dynamics were identified as major factors controlling spatial and temporal patterns of size and number distributions.

Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator DOI: 10.3402/tellusb.v68.29250
ISSN: 0280-6509
URN: urn:nbn:de:swb:90-539336
KITopen ID: 1000053933
HGF-Programm 12.03.01; LK 01
Erschienen in Tellus B
Band 68
Seiten 29250
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Schlagworte ultrafine particles, source apportionment, budget, regional distribution, Germany, power station emissions
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