Air Quality Alerts Active Across Western US Due to Wildfire Smoke and Ozone

AirNow reports active air quality alerts across several western U.S. regions. Hazardous air quality from wildfire smoke is affecting Northern California and Southern Oregon, unhealthy air quality due to ozone and smoke is present in the Greater Los Angeles Basin, and elevated PM2.5 levels are causing alerts in the Seattle Metro and Puget Sound Region.