Philadelphia issued a "Code Red" air quality alert Thursday due to Canadian wildfire smoke, with air quality reaching "Very ...

A "Code Purple" alert is the second-highest level of the Air Quality Index and signifies a "very unhealthy" level of air ...

When an air quality alert is announced, here are what the code colors mean and what the health dangers are as Canadian ...

Delaware has issued a code purple for much of the state, meaning it's unhealthy to be outside. Check the latest air quality with our air quality map.

From New York and Pennsylvania to Michigan, Illinois, Ohio, Maryland and Virginia, deteriorating air quality has triggered ...

A maroon Air Quality Index indicates a health warning of emergency conditions, as everyone is likely to be affected.

At Lehigh Valley International Airport, the National Weather Service forecasts widespread smoke Thursday night to become ...

Venues and entertainment offerings across Centre County have announced closures or postponements Thursday due to poor air ...

Tokyo's Nikkei 225 index drops 5% on heavy selling of computer chipmakers and other AI-related shares. Copyright 2026 The Associated Press. All rights reserved. This material may not be published, ...

Tussey Mountain WingFest has postponed its Thursday concert and competition due to poor air quality. Festival officials said ...

What you should knowThe Pennsylvania Department of Environmental Protection has declared a statewide code red air quality day ...

As the wind continues to blow in from the northwest, fine particles in the air will continue to make their way down across ...