The way the wind blows: stark air quality difference two days apart this past weekend in the Waddington Range, Coast Mountains, BC, Canada 🇨🇦. #BCWildfires #AirQuality #Sentinel2 @CopernicusEU @sentinel_hub pic.twitter.com/s1ZHGdx8Tr

— Peter Neff (@peter_neff) August 13, 2018