Supplementary material to "Uncertainty in aerosol hygroscopicity resulting from semi-volatile organic compounds"

Abstract

Dependence of κ on size distributionIn the main body of the paper, we discuss the effects of SVOCs on the hygroscopicity of non-volatile aerosol modes. Although four different chemical compositions of the particles are considered, only one size distribution is used. In this supplement, we briefly discuss the effect of using different aerosol size distributions of ammonium sulphate on κ SV OC . We have varied one parameter at a time 5 while using the mean values stated in the main paper for the other two parameters. This will be investigated further in future work.The dependence of κ SV OC on median diameter is shown in Figure 3. Little variation in mean κ SV OC can be observed although the uncertainty reduces by a factor of 2 when the median diameter 15 is increased from 50 nm to 200 nm.