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Comparison of Particle Number Size Distributions in Three Central European Capital Cities
Zíková, Naděžda ; Borsós, T. ; Řimnáčová, Daniela ; Smolík, Jiří ; Wagner, Zdeněk ; Weidinger, T. ; Burkart, J. ; Steiner, G. ; Reischl, G. ; Hitzenberger, R. ; Schwarz, Jaroslav ; Salma, I. ; Ždímal, Vladimír
Health aspects of ultrafine aerosol particles in urban environment have been studied extensively in recent years (Salma et al., 2011; Putaud et al., 2010; Qian et al., 2007 etc.). Three main sources of the ultrafine particles have been defined – traffic, biomass burning, and atmospheric nucleation. However, the diurnal changes in intensities of individual sources are of considerable extent, similarly to the scale of variations in particle number concentrations due to meteorological phenomena.
Fulltext: content.csg -  PDF
Plný tet: SKMBT_C22013091814450 - PDF
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Porovnání ultrajemných atmosférických aerosolů v Praze a Budapešti
Matějková, Daniela ; Borsós, T. ; Ždímal, Vladimír ; Salma, I. ; Schwarz, Jaroslav ; Smolík, Jiří
Data measured in Prague suburbs and Budapest city center have been compared in the time period from November 1, 2008 until August 31, 2009 in the size range from 10 nm to 1 µm. Total average particle number concentrations were calculated, 6.8×103 particles/cm3 in Prague, and 1.3×104 particles/cm3 in Budapest. The size distributions were mostly bimodal with the mode located either in the Aitken (25–100 nm) or in the accumulation mode range (> 100 nm). When new particle formation started in the atmosphere, the nucleation mode (< 25 nm) appeared growing from the lowest detectable sizes upwards.
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