Canada had some of the worst air quality in North America on Tuesday morning according to waqi.info, the website for the World Air Quality Index project. See how your community ranks.

West Central is remaining under a Special Air Quality Statement as we move through Wednesday morning, but the current high-risk conditions are expected to abate by this evening with a change in conditions.

Wednesday’s forecast calls for sunny skies, a high of 33 Celsius, a humidex value of 40 and a UV index of 9, or very high.

A group of Republican lawmakers has complained that smoke from Canadian wildfires is ruining summer for Americans, just days after voting for a major bill that will cause more of the planet-heating pollution that is worsening wildfires.

And even if you don’t feel any discomfort on your run, it doesn’t mean there’s no harm being done. The pollutants can have long-term effects such as reduced lung function, increased risk of respiratory infections and can be linked to countless other health issues.

With various air quality indexes available, and as wildfire smoke becomes an increasing health risk, here’s what often goes into the decision to play sports or not — and how to make sense of air quality indexes when making your own decision.