Moderate to high air quality risk in Edmonton as warm temperatures help trap emissions

Alongside temperatures, Edmonton’s air quality health index is rising. The AQHI rating settled at a level six – in the middle of the “moderate risk” zone – Monday afternoon after steadily rising throughout the morning. By 5 p.m., it had jumped again to level nine.  A day before, it had been just a level two. “The increase in high rating of AQHI is due to the pretty steep inversion in the atmosphere we have right now,” said Environment and Clima