Abstract for presentation at 14th IUAPPA World Congress

Characterisation of Soluble Inorganic PM10 Aerosols in Brisbane

  • A U Wathsala Kumar, International Laboratory for Air Quality and Health, Australia

    • PM10 samples were collected from three sites in Brisbane over a period of 18 months.
    These samples were analysed for water soluble ionic species (Na+ , K+, Mg2+, Ca2+, NH4+, Cl-,NO3-, SO42- ) using ICP-AES and Ion exchange chromatography.
    Metallic species (Zn, Ni, Pb, Fe, Mn, Al, Si, V) that are soluble in acid were also analysed using ICP-AES. Sodium and Chloride concentrations were highest in all samples. Principal Components Analysis (PCA) was used to identify difference between sampling sites, seasonal differences and weekend/week day concentrations. This showed that seasonal variation played a main role in the soluble aerosol concentration of the samples. PCA was also used to identify the sources of the samples and it could be concluded that sea salt and soil are the major sources of aerosol samples.

    Conference Organiser - ICMS Pty Ltd