As of Monday, some 300 wildfire were burning across British Columbia. Thirty-seven blazes, 12 per cent of all B.C. fires, are rated as highly visible or a threat to life or property. Several new evacuation orders and alerts were posted over the weekend by regional governments across B.C.’s southern Interior.

The haze is expected to subside by the middle of next week, a meteorologist with the National Weather Service said.

Active fires in northeastern Ontario and eastern Manitoba are expected to send smoke across northern Quebec today and Wednesday, Environment Canada said in a special air quality statement posted for each of the region’s 14 communities.