Fig. 8.

Modeled implications of (Upper) MVK-oxide reaction with SO₂ on global sulfuric acid and (Lower) MVK-oxide reaction with formic acid on global formic acid evaluated using the global chemistry and transport model STOCHEM-CRI. Model evaluations presented result from comparison of our best current understanding of CI reactions (STOCHEM-CI0) with a case neglecting the contribution of MVK-oxide reactions with SO₂ and formic acid, but including unimolecular decomposition, reactions with water and water dimer, and unimolecular and bimolecular reactions of all other CIs (STOCHEM-CI1). Further details are given in SI Appendix.