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 ...

That stands in contrast to the smoke from the 2023 Canadian wildfires that drifted to New York and other American states hundreds of miles away, causing spikes in emergency room visits for asthma.

In 2023, Canadian wildfires caused significant decline in air quality in New York, and much further afield (Credit: Getty Images) The air we breathe can have profound effects on our physical and ...

The massive scale of the Los Angeles wildfires means even people whose homes didn't burn down face health concerns from ...

That's the most in a decade. That year, Canadian wildfires sent smoke sweeping across much of the U.S., engulfing the New York City skyline for days under an orange sky. And the fires have continued.

Researchers have shown that plumes of wildfire smoke can carry contaminants hundreds of kilometers, leaving a toxic and lingering footprint which has the potential to be re-released into the ...

Canadian researchers have reported that people ... show an increase in fungal infections in the months following wildfire smoke exposure, likely due to fungal spores in the smoke.

From the Los Angeles blazes to other surprise wildfires in 2025, you could be threatened by smoke. Here's how to guard yourself against it.