Comparison of the O3 chemistry in the Po Valley with that in the Benelux region as simulated with MECO(n)

Abstract

This study investigates the contributions of anthropogenic non-traffic (i.e. households, industry, etc.) and land transport emis- sions to the ozone budget in Europe and Southeast Asia. For this we performed two simulations with the global/regional che- mistry-climate model MECO(n) including a source apportionment method for ozone to investigate regional differences bet- ween the chemical regimes, especially of the ozone formation potential. Our findings show that contributions from global anthropogenic non-traffic emissions to ground-level ozone are larger in Southeast Asia than in Europe. The contrary applies for the global land transport emissions, which are more important in Europe compared to Southeast Asia.