Infographic Air Pollutant Emissions from All Sources in Canada Share Regulations have positively impacted air quality in Canada with the majority of air pollutants decreasing significantly since 1990. Published March 25, 2020 | Last modified on September 6, 2023 You may also be interested in Infographic Responding To Oil Spills Infographic Energy Efficiency of Transportation Modes Report West Coast Spill Response Study 2