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Urban street dust: mineralogy and shape analysis of aerosolized fraction
Lebedenko, Viktoriia ; Hovorka, Jan (advisor) ; Vodička, Petr (referee)
One important source of coarse particulate matter in urban atmosphere is the resuspended street dust. The aim of this study was to determine the emission potential of street dust samples, to conduct shape and mineralogical analysis of resuspendable fraction and on the bases of the findings carry out a comparison between the different sampling sites. The dust samples were collected in February 2014 in three cities: Ostrava, Prague and Pilsen. For the purpose of this study, nine samples from the selected sites were dispersed in a resuspension chamber. The samples were collected in the center of every city in the following locations: the main square, the tram railway and the curbside. Morphological and elemental analysis was performed using a Scanning Electron Microscope with EDS detector. The presence of mineral components such as quartz, chlorite, calcite, feldspar and kaolinite was observed. In samples from Ostrava were found spherical-shaped particles composed of iron oxides. The samples of Pilsen contained amphibole mineral fibers - actinolite. X-ray Powder Diffraction at high sensitivity showed the presence of amphibole asbestos in the samples from Ostrava and Prague. The mass of each size fraction of resuspended samples was determined. The mass size distribution was bimodal (2.5 µm and 8 µm),...
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Quantitative analysis of actinolite in the Pilsen Basin area by X-ray powder diffraction
Chlupáčová, Monika ; Havlíček, David (advisor) ; Nižňanský, Daniel (referee)
Increased concentration of suspended particles of the PM10 fraction, transportation and construction industry have serious impact on health. In Pilsen, the Air Improvement Programme in Pilsen Municipality takes place in accordance with the Pilsen Municipal Development Programme, the Regional Emissions Reduction Programme of the Pilsen Region and the National Emissions Reduction Programme of the Czech Republic. This thesis aims on determining the content of actinolite, azbestos mineral from amphibole group, in the samples from the Pilsen Basin. Altogether 23 samples from Pilsen municipal area were measured using the quantitative analysis method and X-ray powder diffraction. The actinolite content was determined in the samples.
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Urban street dust: mineralogy and shape analysis of aerosolized fraction
Lebedenko, Viktoriia ; Hovorka, Jan (advisor) ; Vodička, Petr (referee)
One important source of coarse particulate matter in urban atmosphere is the resuspended street dust. The aim of this study was to determine the emission potential of street dust samples, to conduct shape and mineralogical analysis of resuspendable fraction and on the bases of the findings carry out a comparison between the different sampling sites. The dust samples were collected in February 2014 in three cities: Ostrava, Prague and Pilsen. For the purpose of this study, nine samples from the selected sites were dispersed in a resuspension chamber. The samples were collected in the center of every city in the following locations: the main square, the tram railway and the curbside. Morphological and elemental analysis was performed using a Scanning Electron Microscope with EDS detector. The presence of mineral components such as quartz, chlorite, calcite, feldspar and kaolinite was observed. In samples from Ostrava were found spherical-shaped particles composed of iron oxides. The samples of Pilsen contained amphibole mineral fibers - actinolite. X-ray Powder Diffraction at high sensitivity showed the presence of amphibole asbestos in the samples from Ostrava and Prague. The mass of each size fraction of resuspended samples was determined. The mass size distribution was bimodal (2.5 µm and 8 µm),...
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Quantitative analysis of actinolite in the Pilsen Basin area by X-ray powder diffraction
Chlupáčová, Monika ; Havlíček, David (advisor) ; Nižňanský, Daniel (referee)
Increased concentration of suspended particles of the PM10 fraction, transportation and construction industry have serious impact on health. In Pilsen, the Air Improvement Programme in Pilsen Municipality takes place in accordance with the Pilsen Municipal Development Programme, the Regional Emissions Reduction Programme of the Pilsen Region and the National Emissions Reduction Programme of the Czech Republic. This thesis aims on determining the content of actinolite, azbestos mineral from amphibole group, in the samples from the Pilsen Basin. Altogether 23 samples from Pilsen municipal area were measured using the quantitative analysis method and X-ray powder diffraction. The actinolite content was determined in the samples.
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Morphology, chemical and toxicological characterisation of road dust and particulate matter including sources apportionment: Final report - summary
Adamec, Vladimír ; Huzlík, Jiří ; Ličbinský, Roman ; Effenberger, Karel ; Mikuška, Pavel ; Večeřa, Zbyněk ; Dočekal, Bohumil ; Vojtěšek, Martin
Project brought new scientific results in the field of chemical composition, physical and toxicological characterization of street dust and particulate matter. Chemical analyses and statistical methods including receptor modelling result in identification their sources.
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