The report shows:

• A reduction of the number of days where smog was observed. Result: Four days of smog 2022, which represents a reduction of three days as compared with 2021. Info-Smog
• An increase in the number of days with poor air quality primarily caused by fine particles . Result: 33 days in 2022 as compared with 27 in 2021. Despite the slight increase over this period, the yearly average of fine particle concentrations has decreased over the past several years. 
• Air quality in the east is not of poorer quality than elsewhere in the agglomeration. 
• Reviewing the data for benzene, toluene, ethylbenzene and xylene from 2010 to 2022 showed a major reduction of these components in the air in eastern Montréal.