Size distributions of inorganic and organic species in the atmospheric aerosol in Hungary

摘要: Atmospheric aerosol samples were taken in different size intervals by means of a Berner-type cascade impactor. The analyzed using capillary electrophoresis, atomic absorption spectrometry as well liquid and gas chromatography to determine the distribution water soluble inorganic organic ionc, metallic elements, polycyclic aromatic hydrocarbons n-alkanes, respectively. distributions ammonium sulfate ions measured this work compared with those determined about 30 years ago: decrease absolute concentration an increase mass median diameter both have been observed. results indicate that most important ions, ammonium, are accumulation mode (0.125–1.0 μm diameter) maximum range 0.5 1.0 μm. In summer nitrate is different, showing coarse (d > μm). form spectra car☐ylic dicar☐ylic acids very similar while some like calcium carbonate concentrated mode. elements rather variable function formation (e.g. combustion fossil fuels, metal industry and/or surface desintegration) probably dynamic processes. Some them chromium nickel 0.0625–0.125 μm, others Al, Fe) characterized peak range. major polycylic found (with larger sizes winter), n-alkanes detected partly below 0.125 owing combination effects anthropogenic biogenic sources.