where r ROO. stands for the peroxyl radical consumption flux by a certain reaction type in moles per second, indicated by its subscript (radical addition 'ROO. add'; hydrogen atom abstraction 'ROO. Habs'; radical recombination 'ROO. recomb'; radical disproportionation 'ROO. disprop'; concerted HO 2 elimination from peroxyl radical 'ROO. eli'), F out, ROO. is the total out flux of peroxyl radicals, and F evap, ROO. is the total evaporation flux of peroxyl radicals.