A reminder of how good our Purple Air network truly is

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With air quality changing rapidly, and awareness of the risks from air pollution increasing daily, here's a handy reminder of how good the Purple Air network truly is.

In Kamloops, British Columbia, the provincial government has only one air monitoring station for the entire region. It is located downtown on West Victoria Street, and incidentally away from some of the largest industrial polluters.

A Purple Air sensor happens to be co-located near this provincial air monitoring station, and it is within 200m of it and at a similar elevation from the ground.

Here's what the provincial readings look like recently for PM2.5 levels.


And here is a graph from the co-located Purple Air sensor.


If you focus on the graphs between April 4-10 (the Purple Air graphing package only shows one week at a time), you'll see that the pattern is virtually identical and readings are extremely close.

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