3. Results and Discussion3.1. Curre

3. Results and Discussion
3.1. Current emissions
The national 2012 total annual emissions by SNAP and for
each considered pollutant are presented in Table 1, which allow
the identification, for each pollutant, the SNAP with higher
emission value.
The higher emission values of CO and PM2.5 could be found in
the SNAP2, which result from the residential/commercial
combustion processes. CO also has higher values in SNAP7 (traffic
sector). The other pollutant with higher contribution to the SNAP7
emissions is NOX. As expected, the SNAP with higher SOX emission
values is SNAP3 (industrial combustion), for NH3 emissions is
SNAP10 (agriculture) and NMVOC emissions is SNAP6 (solvent use).
For PM10, the higher emission values are found in SNAP2 and
SNAP4 (industrial processes).