Air Quality Map

Welcome to the Cowichan Region's Air Quality map. Data is refreshed every 60 minutes. Tips on how to use the map are below. To display the legend, click on the >> in the map.

How to use the map

  • Navigate: Use your mouse to click and drag the map to a desired location
  • Zoom in to view individual stations: Use the + and - buttons on the top left of the map to increase or decrease the magnification size of the map
  • View station data: All circles represent BC air monitoring stations. All squares represent purple air sensor stations.  Click on a station to view data and related information.
  • View smoke forecast: The smoke forecast overlay represents the 24 hour forecast for fine particulate matter (PM2.5) levels as modelled by firesmoke.ca. The bar below indicates the meaning of the overlay colours.

The smoke forecast appears as cloud like shapes in the map above. Depending on current conditions and available information, there may not be a smoke forecast for the region.

Map Data Sources

The BC government PM2.5 sensors in the map above are sourced from the same data as is used in the BC Air Quality page Current PM2.5 Data.

The Purple Air network sensor data is sourced from the same data as is used for the Purple Air network map.

The wildfires in British Columbia are from a publicly-available layer provided by the BC Wildfire Service and as seen on the BC Wildfire Service's active wildfires map.

Finally, the North America wildfire locations and PM2.5 overlay is forecast and provided by firesmoke.ca.

Frequently Asked Questions

Answers to frequently-asked questions regarding the air sensors can be found on the FAQ page.