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National Repository of Grey Literature 7 records found  Search took 0.01 seconds. 
Metal concentrations in urban aerosol in Brno and in exhaust fumes
 Coufalík, Pavel ; Mikuška, Pavel ; Křůmal, Kamil ; Vojtíšek, M. ; Matoušek, Tomáš ; Večeřa, Zbyněk
Total metal concentrations in aerosol samples and exhaust fumes as well as the bioaccessibility of metals in simulated lung fluids were determined. The extraction in vitro seems not to be dependent on the surface tension of extraction solution.
Detailed record
Metals concentrations in urban aerosol and in exhaust emission
 Coufalík, Pavel ; Mikuška, Pavel ; Křůmal, Kamil ; Vojtíšek, M. ; Matoušek, Tomáš ; Večeřa, Zbyněk
Total metals concentrations in aerosol samples and exhaust fumes as well as the bioaccessible proportions of metals were determined. The bioaccessibility of metals in vitro should be assessed according to the extraction in simulated lung fluids with a low surface tension.
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Composition of particles and gases in emissions of spark ingnition engines: effect of operation cycles and alcohol fuels
 Mikuška, Pavel ; Křůmal, Kamil ; Coufalík, Pavel ; Vojtíšek-Lom, M. ; Beránek, V. ; Štolcpartová, Jitka ; Večeřa, Zbyněk
Chemical composition of particles and gaseous compounds in emissions of spark-ignition engine depends on operation cycle and the method of formation of the fuel mixture. Particulate emissions (both particle mass and especially particle number concentration) were significantly higher at engine with the direct formation of mixture (engine DISI) than at engine with indirect formation of the mixture (MPI), and were affected both by the operating conditions and by the fuel used.
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Organic compounds on dust particles in emissions of gasoline cars
 Mikuška, Pavel ; Křůmal, Kamil ; Coufalík, Pavel ; Večeřa, Zbyněk ; Vojtíšek, M.
In this study, chemical composition of emissions of two gasoline cars (Ford-Focus; DISI and Skoda Fabia; MPI) was compared. Two different fuels and working cycles were applied during experiments.
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Extraction of bioavailable proportion of metals in aerosol and street dust
 Coufalík, Pavel ; Mikuška, Pavel ; Křůmal, Kamil ; Večeřa, Zbyněk ; Vojtíšek, M. ; Matoušek, Tomáš ; Zvěřina, O.
The determination of total contents and bioavailable proportions of selected metals in street dust, urban aerosol and emissions from biofuel combustion was performed in this research. Extraction solutions simulating body fluids evinced significantly different extraction ability.
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statistical analyssis of chemical composition of urban aerosol PM1 in Brno and Šlapanice
 Mikuška, Pavel ; Mikušková, M. ; Křůmal, Kamil ; Večeřa, Zbyněk ; Michálek, J.
Urban aerosol particles in the size fraction PM1 collected in Brno and Šlapanice in winter and summer campaigns in 2009 and 2010 were analysed for ions and metals. Statistical analysis of chemical composition of PM1 aerosols by using a factor analysis was applied to identify emission sources of urban aerosols in Brno and Šlapanice.
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Extraction of bioavailable proportion of metals in diesel emissions and atmospheric aerosols using artificial lung fluids
 Coufalík, Pavel ; Mikuška, Pavel ; Křůmal, Kamil ; Večeřa, Zbyněk ; Vojtíšek, M. ; Matoušek, Tomáš
The determination of bioavailable proportion of selected metals in biofuel exhaust and atmospheric aerosols, and a comparison of artificial lung fluids in relation to the yield of extraction were performed.
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