“…In the atmosphere, OVOCs are supposed to react mainly with OH radicals, although reactions with NO 3 , Cl and ozone cannot be excluded for some of the species in specific environments . The photolysis channel could be significant for carbonyl species (Moortgat, 2001;Bouzidi et al, 2014) and yet, its importance in the case of hydroxycarbonyl VOCs is almost unknown, while recent studies suggest that photolysis could be significant (Henry et al, 2012;Messaadia et al, 2012). Atmospheric chemistry of hydroxyacetone, the smallest hydroxyketone compound, is reasonably well understood (Orlando et al, 1999;Dillon et al, 2006).…”