Größenfraktionierte Probenahme feiner und ultrafeiner Partikel in Emissions- und Immissionsproben aus Berlin und Bestimmung der Inhaltsstoffe PAK/NPAK, Anionen, Schwermetalle sowie des organischen und elementaren Kohlenstoffs

Duangkamol Yenying Dietrich, Wolfgang Rotard, Technische Universität Berlin, Technische Universität Berlin
2012
The effects of airborne particulate matter on human health are depending on the physical properties such as particle-size and morphology as well as the chemical composition. Therefore, size-fractionated characterization of the chemical composition of dust particles is important with regard to health hazards. In the present thesis were determined various organic and inorganic compounds contained in fine and ultrafine particles sample at various monitoring stations in Berlin and also at an
more » ... d also at an emission source (exhaust of oil heating). A elf-stage Berner low pressure impactor has been used for particle collection. After solvent extraction of the individual sampling stages by sohxlet extractor and pretreatment of the extract by column chromatography fourteen PAHs, nine Nitro-PAHs, three Chlorine-PAHs and three Bromine-PAHs were determined by GC-MS. The sum of organic compounds (OC) and elemental carbon (EC) were determined by combustion analysis followed by infrared detection of carbon dioxide formed. In addition selected trace metals (Pb, Cu and Fe) and anionic constituents (Cl-SO42- and NO3- were determined by X-ray fluorescence spectrometry and ion chromategraphy, respectively. The highest content of PAHs in the emission samples OHE01 and OHE02 were found in the particle fraction 12 - 32 nm. However, in the emission samples OHE03 and OHE04 were found the highest content of PAHs in the particle size range 490-1000 nm and 1000-2000nm respectively. The content of PAHs and Nitro-PAHs in total dust are in the range 131 µg/g to 913 µg/g and 37 µg/g to 134 µg/g, respectively. The concentrations of PAHs and Nitro-PAHs in the emission samples were between 67ng/m3 and 408 ng/m3 and 19 ng/m3 and 60 ng/m3, respectively. Sulfate was almost evenly found in all particle fractions in the range 314 mg/g and 496 mg/g. The data of the OC I and OC II emissions of the oil heating clearly indicate that they are predominantly in the particle size range of 12 – 32 nm. It is remarkable that EC was found only in the particle fraction of 57 – 9 [...]
doi:10.14279/depositonce-3464 fatcat:cwuncivglvfu7lutwn6djhi7ei