Air pollutant emissions indicators: data sources and methods, chapter 1


The Air pollutant emissions indicators are part of the Canadian Environmental Sustainability Indicators (CESI) program, which provides data and information to track Canada's performance on key environmental sustainability issues. These indicators are also used to report and measure progress towards the goals of the 2016-2019 Federal Sustainable Development Strategy.

Air pollution problems such as smog and acid rain result from the release of pollutants into the atmosphere. The majority of these pollutants come from human activities, such as transportation, the burning of fuels for electricity and heating, and industry. They are also released from natural sources, such as forest fires and from vegetation.

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