Environment ❯ Air Quality ❯ Pollution ❯ Health Effects

Sensitive Groups

Code Orange Air Quality Alerts Continue in Parts of Pennsylvania, Extending Into Thursday in Some Areas

Stagnant air under a temperature inversion is trapping fine particle pollution near the surface.

Code Orange Air Quality Alert in Susquehanna Valley Today Through Midnight

Code Orange Air Quality Alert Issued for Greater Pittsburgh Today

Canadian Wildfire Smoke Extends Air Quality Alerts Across Midwest and Northeast

Dangerous Ozone Levels and Wildfire Smoke Keep Air Quality Alerts in Effect

Northern California’s Interior Hits Hottest Temperatures of the Year as Triple-Digit Heat Persists