"Nitrogen oxide emissions by province and territory, Canada, 1990, 2005 and 2024",,,,, ,,,,, Province or territory,1990 (emissions in kilotonnes),2005 (emissions in kilotonnes),2024 (emissions in kilotonnes),, Newfoundland and Labrador,49.0,59.6,34.4,, Prince Edward Island,6.3,6.8,3.0,, Nova Scotia,80.8,87.8,27.7,, New Brunswick,77.9,69.8,20.0,, Quebec,305.1,281.8,123.1,, Ontario,589.4,537.8,175.7,, Manitoba,70.1,66.6,27.3,, Saskatchewan,146.2,173.1,99.4,, Alberta,605.2,663.2,503.5,, British Columbia,280.3,284.2,167.1,, Yukon,3.3,2.5,2.4,, Northwest Territories,10.4 [A],14.3,9.7,, Nunavut [A],n/a,7.8,11.5,, ,,,,, "Note: [A] 1990 emissions data for the Northwest Territories include emissions for Nunavut, which was part of the Northwest Territories until 1999. n/a = not applicable. The indicator reports air pollutant emissions from human activities only. It does not include emissions from natural sources such as forest fires and from vegetation.",,,,, Source: Environment and Climate Change Canada (2026) Air Pollutant Emission Inventory (https://www.canada.ca/en/environment-climate-change/services/pollutants/air-emissions-inventory-overview.html).,,,,, Available on the Environmental indicators website (www.canada.ca/environmental-indicators).,,,,,