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Study of size-resolved atmospheric aerosol using cascade impactors
Kozáková, Jana ; Schwarz, Jaroslav (advisor) ; Vojtíšek, Michal (referee) ; Krejci, Radovan (referee)
This dissertation includes two main research projects: 1) the investigation of the intermodal fraction and 2) the influence of regional air pollution transport on Ostrava. Introduction and aim of the first project. Fine and coarse particulate matter (PM) of atmospheric aerosol are considered as separate pollutants and overlap in the particle size range of about 1 - 2.5 μm (aerodynamic diameter dae; PM1-2.5) which represents the intermodal fraction. Sources of both fine and coarse fractions contribute to PM1-2.5 to different extents due to changing meteorological and spatial conditions. Therefore, there is an ongoing discussion as to whether PM1 should be included for monitoring as an additional fine particulate pollutant by the ambient air quality standard. The intrusion of the one fraction to the other one can lead to some inaccuracies in the source apportionment, epidemiological and exposure studies. The aim of the first project was to examine the associations between PM1-2.5 and the coarse (PM2.5-10 or PM>2.5)/fine (PM1) fraction under different meteorological conditions at various sites in the Czech Republic during winter and summer seasons. Introduction and aim of the second project. The EU air quality standards have been frequently exceeded in one of the European air pollution hot spots:...

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