Regarding particulate matter, a reduction is foreseen for both
daily and annual values of PM10 for 2020 scenario (Figures 6m–6p).
This decrease is more evident in the urban areas of Porto and
Lisbon, where this pollutant register the highest concentration
values. It should be noticed that this reduction will allow fulfilling
the legislation thresholds that were not accomplished in 2012. For
PM2.5 (Figures 6g–6h) there are no expected changes regarding the
annual average between 2012 and 2020.