This website provides two types of air quality information that can be viewed in real time:
Current and forecast Air Quality Health Index (AQHI) values, a scale to help you understand what the air quality around you means to your health. AQHI values are shown in the table to the left, and health messages found by clicking on the station name. For further details, see: Accessing Additional Information on the AQHI.
Measurements of specific air pollutants such as PM2.5, and other parameters such as temperature and wind speed. To access this data, click on the map to zoom in, and click again on your community of interest. For further details, see: Accessing Pollutant Concentrations.
It is normal for one hour per day to be missing from the displayed readings for all gas parameters. We schedule automated instrument checks for these periods to help ensure proper operation of the monitoring equipment.
Data found on this web site is accessible in raw form before all quality assurance reviews are complete. This data is preliminary and is subject to change during the review process.