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 The Latest Article Canada’s efforts to mitigate underwater radiated noise Article Simulations to Spot a Problem Before it Occurs Article Measuring Sound: Onboard Approaches