Monitoring of ambient air quality in the Sea-to-Sky Airshed is conducted by the Ministry of Environment.

Air quality in the region has been measured since the late 1970s, and is presently monitored continuously in Squamish, Whistler and Langdale. You can see the air quality measurements made by the Ministry of Environment at all the stations  here.

There are also non-continuous monitoring stations in Gibsons and Pemberton. The data is available on request from the B.C. Ministry of Environment Lower Mainland Region office.

To learn more about the individual pollutants that are monitored, see the Air Quality Science page in the Reading Room.

Forecasting of the effect of air pollution on our health is carried out by Environment Canada for several areas of the province. The forecast location in this airshed is Whistler. Often when large-scale air stagnation events happen in summer, they affect the entire south coast region. B.C. Ministry of Environment meteorologists predict when poor air quality events may occur. If an Air Quality Advisory is issued for the Sea-to-Sky/Howe Sound airshed, it will be broadcast it is distributed to local media, municipalities, and shown on the bcairquality.ca website