‹ Toronteau

Air quality updates every 15 min.

what’s the air quality in Toronto like?
one sec. i’m checking the latest official Toronto reading.
what does AQHI mean, anyway?
Air Quality Health Index (AQHI) is Canada’s scale for how outdoor air quality could affect your health. it runs from 1 to 10+, and higher numbers mean higher risk.

AQHI scale at a glance

1-3Low
4-6Moderate
7-10High
10+Very high

looking ahead

what’s the air quality like the rest of the day today?
i don’t have a current forecast right now.
i don’t have this forecast right now.
what’s the air quality forecast for tomorrow?
i don’t have this forecast right now.
this is Environment Canada’s forecast, but air quality can change unexpectedly.

about this website

should i trust this website?
yeah. it uses Environment Canada data to show what Toronto’s air is like.
it can’t tell you exactly what the air is like on your street.
is this an official government website?
no. Toronteau is independent. it uses official government data, but it isn’t affiliated with the City of Toronto, Ontario, or Environment Canada.
who made this?
i’m Amrit Sharma. i live in Toronto and have spent more than a decade working on air quality and climate change.
i serve on the board of OpenAQ, helping make air-quality data more open and useful. the Asian Development Bank recently invited me to help develop a regional clean-air action plan with countries across South Asia.
i work at ecobee, designing grid-resiliency programs that help keep the lights on during heat waves and winter storms.
what should i do next?
check the latest official forecast before making plans outside.
if this helped, share it with a friend, neighbour, or group chat.

Help Toronto breathe a little easier.

Pass this along to a friend, your group chat, or that #random Slack channel.

Toronto's AQHI data: Environment and Climate Change Canada.

Wildfire-smoke forecasts: FireSmoke Canada.

Health risks of air pollution

toronteau.com