Attribution of aerosol particle number size distributions to main sources using an 11-year urban dataset

Abstract

10%. The O3-associated secondary aerosol made up the smallest (>3%) contributions. The conditional bivariate probability function analysis showed considerable spatial variations in the source origin. The combination of the size-segregated particle number concentrations, wide overall range of the size channels, considerably long dataset, dispersion correction and modelling over separate seasons led jointly to a unique adaptation of the source apportionment and yielded novel and valuable insights into the urban aerosol sources and processes both for Budapest and in general.