Chemical characterisation of PM 10 and PM 1 collected at the Sonnblick Observatory

Hanna Gureczny, Anneliese Kasper-Giebl
Since 2016 weekly samples of aerosols (PM 1 and PM 10) are taken at Sonnblick Observatory (SBO; 3106 m a.s.l.) in cooperation with ZAMG (Zentralanstalt für Meteorologie und Geodynamik). These filter samples were analysed for the time period from June 2016 to May 2018. X-Ray fluorescence analysis (XRF), ion chromatography (IC) as well as Transmissiometer and Sunset measurements were used to characterise the composition of these aerosol samples. Ions, sugars, carbonaceous compounds, as well as
more » ... als, were measured and compared with available online measurements of aerosols at SBO (Aethalometer, SHARP). In case that analytes were determined with more than one analytical method an intercomparison was performed. Typical annual cycles of analytes could be observed over the two-year time period. Higher concentration in summer than in winter were found at the height of the sampling station due to different mixing of the troposphere for most of the compounds. In summer the mixing layer reaches higher up, transporting boundary layer air masses up to the site. Summer to winter ratios reach up to 7. Concentrations of PM 1 mostly lay below the concentrations of PM 10, as expected.
doi:10.34726/hss.2018.54641 fatcat:kxamzzmrfrbwrd2ocuy5nz4gyq