APEI Portal — Ontario air pollutant emissions

APEI Portal Ontario air pollutant emissions, 1990–…

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Data © Environment and Climate Change Canada, Open Government Licence – Canada. Values are never estimated where marked null — a blank cell means "not estimated," not zero. Units differ by pollutant (t / kg / gTEQ / g) and are always shown next to values. API docs

Ask APEI

Ask about Ontario emissions — e.g. "Which Ontario sectors cut SO₂ the most since 2005?" Ontario is assumed unless you name another region. Answers are generated from a live query against the inventory, not from memory.