Toronto experienced its share of wildfire smoke, much like many parts of the U.S. This photo makes the scene look especially bleak. The sky didn’t actually appear quite this orange to the naked eye — that’s just how my iPhone captured it.
The U.S. uses an Air Quality Index (AQI) that ranges from 1–500, while Canada uses an Air Quality Health Index (AQHI) that ranges from 1–11. Toronto reached 11, the highest level on the Canadian scale, indicating a very high health risk. My iPhone’s Weather app also showed that both the Twin Cities and Duluth were hitting similarly hazardous air quality levels around the same time.
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