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Toxic substances in combustion gases of waste engine oils from evaporating boiler 29 kW
Tydlitát, Vratislav ; Pekárek, Vladimír
Information about measured contents of toxic substances in gases from combustion of two fuels (waste engine oil and waste hydraulic oil) in evaporating boiler Kroll W401 VL 29 kW is presented. The content of halogens and of toxic metals is under official limits. Total toxicities of PCDD/Fs 0,117 and 0,040 ngTEQ.m-3 respectively were found; total toxicities of PCBs 0,004 and 0,0017 ngTEQ.m-3 respectively were found. The contents of 10,5 and 7,9 ?g.m-3 of polycyclic aromatic hydrocarbons respectively were found. Large part of toxic metals remains in the solid rest (ash and carbon) of combustion.
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Persistent Organic Pollutants and Toxic Metals Measured in Emissions from Combustion of Waste Motor Oils
Tydlitát, Vratislav ; Pekárek, Vladimír
Report gives information about measured contents of toxic inorganic gases in emissions from combustion of two preheated and atomized waste oil mixtures from Diesel tracks. The content of toxic metal is under official limits. Total toxicities of PCDD/Fs and PCBs 0,308 and 0,142 ngTEQ.m3 respectively and the content 62 and 6 microg.m3 of polyaromatic hydrocarbons respectively were found in emissions from two waste oils. The content of sulfur, chlorine and metals in fuels were compared with the content of these polluted emissions. Comparison with literature data about similar fuels and emissions is presented.
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Tests on polychlorinated dibenzodioxins and dibenzofurans in gasoline engine emissions
Pekárek, Vladimír ; Smolík, Jiří ; Stach, Jan ; Tydlitát, Vratislav ; Výška, J. ; Přibyl, J. ; Kilian, J. ; Brož, J. ; Grabic, R. ; Lojkásek, M.
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The Rating of the Relation between the Composition of Solid Matter in the Atmosphere and Their Sources in Selected Areas of Prague
Tydlitát, Vratislav ; Pekárek, Vladimír ; Schwarz, Jaroslav ; Šyc, Michal ; Vosecký, Martin
From eght chemical composition of aerosols PM10 and PM2,5 from two areas in Prague on the end of winter and in sommer in analogy with statistical analyses of other authors it was concluded which are possible sources of aerosols in the areas of measurement. For chemical analysis AAS, iont chromatography and X-ray fluorescence methods were used..Soil dust and fine silicates there are a very probable source of aerosols . In connection with realisation of a few measurements the existence of other sources (heating, traffic, cment kiln, industry, ammonium sulphate, nitrate iont) is discussed.
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Asessment of the Relation between the Composition of Aerosols of Solids in Air and Their Sources on Selected Places in Prague
Tydlitát, Vratislav ; Pekárek, Vladimír ; Šyc, Michal ; Vosecký, Martin
Results of the twentyfour hour sampling of aerosols at two posts in Prague: on a street with large traffic and at a post near to cement plant are presented. In aerosols PM10 a PM2,5 adsorbed from 500 to 1000 m3 of air (20 to 40 mg) were determined contents of As,Cd, Cr,Cu, Mn, Ni, Pb, Al, Ca, Fe, K, Mg, Na, Zn by the method of atomic absorption spectrometry. From x-ray fluorescence analyze were assesed contents of Si, S and Cl.. The winter traffic is the source of aerosol wth content of NaCl and SiO2 , Fe, Ca. In the vicinity of cement plant the aerosol contents elements, which are in cement and elements fom combustion: K, Ca, Al and S.
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