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 June 20, 2024 You may also be interested in Article Marine shipping in the Great Lakes: What you need to know Infographic Areas of Response & Response Assets Microsite Oil Spill Response