Interactive comment on “Secondary organic aerosol formation and composition from the photo-oxidation of methyl chavicol (estragole)” by K. L. Pereira et al

(in a chimney plume of an near-source oil palm processing plant) (MacKenzie et al., 2011). The aerosol loadings in the experiments performed here start well below these levels, and then increase through each run to reach levels considerably higher than the loadings in northern Borneo. Thus, it is likely that we observe more higher volatility species in the aerosol phase than we would at atmospherically relevant loadings; due to more higher volatility species partitioning into the aerosol phase at higher mass loadings (Pankow, 1994a, b; Odum et al., 1996). However, the structurally identified compounds were characterised as semito low-volatility oxygenated organic aerosol, and so at atmospherically relevant conditions a sizable fraction of these compounds would be expected to exist in the aerosol phase (e.g. Donahue et al. (2012)).