Forecasters say weak winds have left Canadian wildfire smoke to linger over the U.S. Stronger winds are expected to bring relief later in the week.

PM2.5 — is expected to push the Air Quality Index over 100, reaching levels unhealthy for sensitive groups, including ...

She explained that air quality is largely influenced by wind patterns. With wildfires burning in central Canada, ...

It’s a familiar summer sight by now, and sometimes a familiar smell. The Pennsylvania Department of Environmental Protection ...

Burlington has the worst air quality in the country on Monday compared with other Canadian cities according to the World Air ...

Smoky skies and high humidity are set to linger across southern Ontario on Tuesday, keeping air quality advisories in effect and pushing daytime highs to feel like 34 C. Those hoping to catch the 6:09 ...

New Yorkers are under an air quality health advisory Monday, Aug. 4, as wildfire smoke and ozone pollution push levels into ...

State officials on Monday issued an air quality health advisory for most of Western New York and other regions through Tuesday due to the smoke from ongoing wildfires ...

As Canadian wildfires spread smoke across the U.S. the air pollution is dangerous to health. But there are ways to protect yourself. Here's what to know.

The warning applies to York, Dauphin, Lebanon, Cumberland and Lancaster counties and the entire Susquehanna Valley region.

Weather patterns are expected to bring more spikes in smoke to certain regions tomorrow, according to state officials.

Millions of Americans are being told that being outside for long periods could put them at risk of coughing, eye irritation ...