“…The Criegee intermediate can be stabilized by collisions with the surrounding molecules or it can decompose into (i) an unsaturated hydro-peroxide by fragmentation of a HO radical, (ii) an ester, or (iii) a carbonyl oxide by elimination of an oxygen atom. In the gas phase the reaction mechanisms for ozonolysis of ethene, isoprene and various terpenes have been investigated both with experimental studies [6][7][8][9][10] and theoretical calculations [11][12][13][14][15][16]. The fate of the stabilized Criegee intermediate is manifold, it can undergo unimolecular decomposition [11,16,17] or react with surrounding compounds in the atmosphere such as water [7,[17][18][19][20], HO x (=HO + HO 2 ) [21], NO x (=NO + NO 2 ) [22], SO 2 [17,22], CO 2 [17], H 2 SO 4 [23], aldehydes [9,10,17,24], or carboxylic acid [9,24,25].…”