“Air quality ranges from poor to dangerous and for a time on Wednesday, Toronto was the most polluted major city in the world using the AQI index ... Environment Canada has put a large ...

The Palisades and Eaton wildfires also continue burning in the Los Angeles area, leaving parts of Southern California with ...

Tens of thousands of people have evacuated their homes and at least two have died in raging fires sweeping across Los Angeles County Wednesday. Multiple wildfires spread by strong Santa Ana winds ...

While most research has focused on general air pollution, emerging studies indicate that wildfire smoke can have similar health effects.

The devastating wildfires caused historic damage and forced major entertainment and sports events to be postponed. Newsweek's ...

The composition of a wildfire can also have an impact on human health. With the California fires engulfing homes and businesses, smoke in the region is likely carrying chemicals released from ...

What sets the AQI apart is its unique Canadian context, making it especially relevant for use in Canada, unlike other validated QRIS tools that are commonly used in early years settings but may not be ...

Wildfires are tearing through thousands of acres in Los Angeles County in California, as strong Santa Ana winds stoke the blazes.

As Los Angeles is scorched by rapidly spreading fires, Rep. Marjorie Taylor Greene says the state's governor may be liable for them.

Major air pollutants have declined in recent decades, but USA TODAY’s analysis shows wildfire smoke is taking their place.

Coverage of when the Hughes fire exploded north of Castaic, the areas under evacuation orders and an extended red flag ...

And are you safe if you live farther away? There’s no magic answer to these questions, but we break down what we know.