The evaluation also revealed that impacts are still being produced
and that there is still enough clearance for air quality improvements in
2020. However, it should be noted that the improvements in the general air quality of Spain between 2000 and 2020 were achieved under mod- erate ambition levels and without considering departures from current legislation. The results presented in this paper provide a useful starting point for identifying key issues on which further abatement can be allo- cated in order to deliver better air quality in Spain in the forthcoming years.