Original title: Air Mass Back Trajectories and Dry Atmospheric Aerosol Mass Size Distributions in Prague
Authors: Schwarz, Jaroslav ; Štefancová, Lucia ; Maenhaut, W. ; Smolík, Jiří ; Ždímal, Vladimír
Document type: Papers
Conference/Event: European Aerosol Conference (EAC 2013), Prague (CZ), 2013-09-01 / 2013-09-06
Year: 2013
Language: eng
Abstract: Ambient aerosol size distribution is an important factor influencing aerosol behavior and properties including particle deposition in lungs and aerosol influence on clouds. Both influences are also driven by aerosol hygroscopicity. Cascade impactors used for size resolved determination of chemical composition suffer from changes of ambient RH during sampling. Due to this factor the same particle might be deposited at different impactor stage when it is sampled at noon at 40% RH or in the early morning at 99% RH. Therefore, we used a diffusional aerosol dryer and a 7-stage modified Berner low pressure impactor with a back-up filter during the heating campaigns in 2008. The samples were analyzed for water-soluble ions (Cl-, SO42-, NO3-, Na+, NH4+, K+, Mg2+, Ca2+) and water-soluble organic carbon as a main species that influence aerosol hygroscopicity. Due to the drying, the aerosol size distributions were not influenced by the daily variability of ambient relative humidity.
Keywords: air mass back trajectories; mass size distribution; water soluble ions
Project no.: GAP209/11/1342 (CEP)
Funding provider: GA ČR
Host item entry: Handbook, ISBN N
Note: Související webová stránka: http://eac2013.cz/index.php
Rights: This work is protected under the Copyright Act No. 121/2000 Coll.

Institution: Institute of Chemical Process Fundamentals AS ČR (web)
Original record: http://hdl.handle.net/11104/0223839

Permalink: http://www.nusl.cz/ntk/nusl-156469


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