Greater Sudbury Air Quality Map
View current AQHI observations around Greater Sudbury alongside separate modelled wildfire-smoke guidance.
Latest air quality near Greater Sudbury
Checking the latest official ECCC AQHI observation. The value, reporting location and observation time will appear when confirmed. Missing data does not mean the air is clean or the health risk is low.
Open the AQHI observation map →Get an alert when AQHI reaches high risk near Greater Sudbury, ON.
Choose one alert threshold. A Free My FireRadar account includes three basic email Alerts. FireRadar Plus includes up to 10 enhanced Alerts, multiple compatible conditions and eligible SMS delivery.
AQHI is an official health-risk observation; coverage and station proximity vary by location.
Selected: Greater Sudbury, ON · AQHI reaches high risk (7+).
AQHI alerts indicate the selected official health-risk threshold was observed. They are informational and do not replace official health or emergency guidance.
How to read AQHI around Greater Sudbury
Greater Sudbury air quality can reflect wildfire smoke together with industrial emissions, transportation, ozone, and changing weather. AQHI is a multi-pollutant health-risk index observed at reporting locations; FireRadar does not infer that a high value is wildfire-caused without supporting evidence or treat one station as representative of all of Northeastern Ontario.
Observation, not a city-wide constant
AQHI values come from participating reporting locations and communicate combined health risk from multiple air pollutants. The nearest observation may not match every neighbourhood around Greater Sudbury, and a missing marker is not evidence of clean air. Wildfire smoke is one possible contributor rather than the definition of AQHI.
A focused starting view, not a clipped dataset
This page starts the national FireRadar layer around Greater Sudbury. The underlying AQHI station layer is not clipped to municipal boundaries, so nearby conditions remain visible as you pan or zoom. FireRadar does not infer a uniform value inside a city boundary.
Health and safety limitation
FireRadar is an informational environmental map. Follow Environment and Climate Change Canada, provincial health agencies, local public-health guidance, and emergency authorities for health or safety decisions. This page does not diagnose exposure, determine whether outdoor activity is safe, or predict individual health effects.
Related Greater Sudbury wildfire context
Smoke and air quality can change even when no confirmed wildfire is close to Greater Sudbury. Use the local wildfire page for current official incidents, the fire-danger page for broad fire-weather context, and the province view when you need a wider regional picture.