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Multiple U.S. states and Canadian provinces are experiencing poor air quality from wildfire smoke. Here's where.

Much of Central Canada, Manitoba and Saskatchewan were placed under special air quality statements or warnings on Monday due ...

Ontario's poor air quality and hazy skies will persist for the next couple of days for many areas, with widespread alerts ...

Much of Central Canada, Manitoba and Saskatchewan were placed under special air quality statements or warnings on Monday due to smoke from wildfires, as Environment Canada advised residents ...

Wildfire smoke in several parts of the country is forcing summer camp providers whose communities are under air quality ...

Smoke from wildfires in Manitoba, a Western province facing its worst fire season in 30 years, has created hazardous air ...

Air quality warnings in effect for the Greater Toronto Area, as wildfire smoke from northern Ontario impacts much of the province. The poor air quality may persist for the next several days for some a ...

Environment Canada has placed Toronto, and the surrounding GTA, under both a heat wave and a poor air quality warning due to ...

Air quality officials in six states urged children and adults with sensitivities to avoid prolonged outdoor exposure on July 3 and the Fourth of July amid ozone and harmful levels of fine-particle ...

Environmental sensors provide crucial data for understanding our surroundings. For example, air quality maps based on sensor readings help users make decisions to mitigate the effects of pollution on ...

View the latest weather forecasts, maps, news and alerts on Yahoo Weather. Find local weather forecasts for Toronto, Canada throughout the world ...