The Toronto West AQHI station will experience a temporary interruption in public data reporting from Friday, April 10 to Sunday, April 12 due to scheduled maintenance activities. Air quality information from other Toronto monitoring stations will remain available.
Air quality data on this web page are automatically polled and have not undergone final verification.
Air quality data on this web page are automatically polled from Ontario's Ambient Air Monitoring Network and are intended for public awareness. The data have not undergone complete quality control and quality assurance procedures. The air quality data on this web page are considered “unverified data” and should not be used in published documents.
Data integrity and validity may be affected by instrument malfunctions, telemetry connectivity, QA/QC requirements, instrument calibration times or power outages.