National Repository of Grey Literature 8 records found  Search took 0.02 seconds. 
Organic compounds in PM2.5 aerosol in Ostrava in winter season
Mikuška, Pavel ; Křůmal, Kamil ; Večeřa, Zbyněk
Contribution deals with the study of chemical composition of atmospheric aerosols fraction PM2.5 in Ostrava-Radvanice with focus on analysis selected organic compounds, so-called molecular markers that are used for identification of emission sources of aerosols.
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.
Creation of wind rosettes using the CALMET model
Škáchová, H. ; Vlček, O. ; Trusina, Jan
The CALMETT model is a part of dispersion modeling system (CALPUFF), which is a diagnostical modul for flow fields that counts vertically divided fields of wind direction and wind speed. The model is able to calculate micrometeorological characteristics of the boundary layer above the Earth´s and water surface. To verify the model, test calculations were made at two professional stations CHMI (Praha – Libuš, Mošnov) for the period of 2008 – 2012. Košetice Observatory was chosen for comparison of the stability divided and total height rosettes. The results showed that the CALMETT model is a suitable tool for creating stability divided wind rosettes. When calculating wind rosettes, the correct settings and representativeness of input data should be born in mind.
Method for validation of tropospheric ozone concentrations in ambient air continuously measured at atmospheric station Křešín u Pacova
Mikušková, Martina ; Komínková, Kateřina ; Dvorská, Alice ; Hanuš, Vlastimil
Tropospheric ozone concentrations are measured at three height levels of 250 m high meteorological mast at atmospheric station Křešín u Pacova. In order to get a correct evaluation of the collected concentration data it is necessary to ensure the highest quality during their measurement, validation and storage. The following text presents a method for validation of measurements of minute concentrations from individual heights.
Equipment for continuous collection, correction, and distribution of air samples for evaluation of greenhouse gases at the Atmospheric Station Křešín u Pacova
Hanuš, Vlastimil ; Dvorská, Alice
The Atmospheric Station Křešín u Pacova is focused mainly on research and monitoring of greenhouse gases in the atmosphere. The station was built and equipped according to recommendations of international monitoring network ICOS. The concentration of greenhouse gases is measured continuously at 4 different heights of 250 m tall meteorological mast that is the main part of the station.
Continuous monitoring, data validation and contribution to international databases - the example of the Atmospheric Station Kresin u Pacova
Dvorská, Alice ; Hanuš, Vlastimil ; Komínková, Kateřina ; Holubová Šmejkalová, Adéla
Data from the Atmospheric Station Křešín u Pacova are or will be in close future sent to international and national monitoring and research projects and programmes. When starting the station´s broad range monitoring activities it is necessary to have a well-elaborated method for ensuring high quality measurements.
Comparison of techniques for determination of monoterpenes in forested area
Křůmal, Kamil ; Večeřová, Kristýna ; Holišová, Petra ; Urban, Otmar ; Pallozzi, E. ; Guidolotti, G. ; Calfapietra, C. ; Večeřa, Zbyněk
In this work three different techniques (1 online and 2 offline) for determination of monoterpenes in forest were compared. Monoterpenes were determined by PTR-MS (Proton Transfer Reaction Mass Spectrometer), cylindrical wet effluent diffusion denuders and tenax tubes.
Organic compounds in PM1 in Ostrava and Mlada Boleslav in winter season
Křůmal, Kamil ; Mikuška, Pavel ; Večeřa, Zbyněk
In this work the organic compounds and organic markers used for the identification of sources of aerosols were measured. Monosaccharide anhydrides and resin acids (emissions from biomass combustion) and polyaromatic hydrocarbons (emissions from traffic and incomplete combustion) were observed especially. Hopanes, steranes (traffic, coal combustion) and alkanes were next groups of analysed organic compounds.

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