On May 1, 2016, a fire began southwest of Fort McMurray, Canada. It swept through the community destroying over 2000 structures.
You can read about the latest developments here.
Since 2014 Berkeley Earth has been expanding its real time database of air pollution. Our original focus was on China, but we have continued to add other regions of the world, including Canada
Below see the snapshot from May 7, 2016
A close up view:
Today’s update , available here http://berkeleyearth.org/air-quality-real-time-map/ , shows the change