Air Quality Alerts, AirNow / EPA
Active air quality advisories from AirNow / EPA. AQI levels, particulate-matter readings, and health-impact guidance for sensitive groups.
Showing 1–50 of 118 air quality alerts. Browse by month →
Air Quality
Air Quality Alert: Sacramento, CA Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: S Central LA CO Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: Fresno, CA Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: Anchorage, AK Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: Atlanta, GA Reaches Unhealthy Levels (AQI 170)
EPA ·
Air Quality
Air Quality Alert: El Paso, TX Air Quality Rated Unhealthy for Sensitive Groups
EPA ·
Air Quality
Air Quality Alert: El Paso, TX Reaches Unhealthy Levels for PM10
EPA ·
Air Quality
Air Quality Alert: Kansas City, MO Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: Metro Baltimore Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: Oklahoma City, OK Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: Oklahoma City Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: Philadelphia Residents Face Unhealthy Levels for Sensitive Groups
EPA ·
Air Quality
Air Quality Alert: Tampa, FL Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: Unhealthy Conditions Reported in Portland, OR
EPA ·
Air Quality high
Air Quality Alert: Very Unhealthy Conditions Reported in El Paso, TX
EPA ·
Air Quality
Albuquerque Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups
EPA ·
Air Quality
Albuquerque Air Quality Reaches Unhealthy for Sensitive Groups Level on March 15
EPA ·
Air Quality
Albuquerque, NM Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups
EPA ·
Air Quality
Austin, TX Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups
EPA ·
Air Quality
Austin, TX Air Quality Alert: Unhealthy for Sensitive Groups Due to Ozone
EPA ·
Air Quality
Chicago, IL Air Quality Alert: PM2.5 Levels Reach Unhealthy for Sensitive Groups
EPA ·
Air Quality
Denver-Boulder Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Detroit Air Quality Reaches Unhealthy Levels Due to Fine Particulate Matter
EPA ·
Air Quality
Mecklenburg County Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Nashville Air Quality Alert: PM2.5 Levels Reach Unhealthy for Sensitive Groups
EPA ·
Air Quality
Oklahoma City Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Phoenix Air Quality Reaches Unhealthy for Sensitive Groups Level Due to PM10
EPA ·
Air Quality
Phoenix Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Phoenix Air Quality Reaches Unhealthy Level for PM10
EPA ·
Air Quality
Phoenix, AZ Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups
EPA ·
Air Quality
Phoenix, AZ Air Quality Reaches Unhealthy Levels Due to PM10
EPA ·
Air Quality
San Antonio Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups Category
EPA ·
Air Quality high
Air Quality Alert: Albuquerque, NM Reaches Very Unhealthy Levels (AQI 221)
EPA ·
Air Quality
Air Quality Alert: Albuquerque Residents Face Unhealthy PM10 Levels
EPA ·
Air Quality
Air Quality Alert: Atlanta, GA Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: Chicago, IL Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: Dallas-Fort Worth Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: Denver-Boulder Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality high
Air Quality Alert: Denver-Boulder Reaches Very Unhealthy Levels for PM10
EPA ·
Air Quality
Air Quality Alert: Detroit, MI Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: Detroit, MI Reaches Unhealthy Levels with AQI of 187
EPA ·
Air Quality
Air Quality Alert: El Paso, TX Reaches Unhealthy for Sensitive Groups Level (AQI 127)
EPA ·
Air Quality
Air Quality Alert: El Paso, TX Reaches Unhealthy for Sensitive Groups Level (AQI 139)
EPA ·
Air Quality
Air Quality Alert: El Paso, TX Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: El Paso, TX Reaches Unhealthy Levels for Sensitive Groups
EPA ·
Air Quality high
Air Quality Alert: El Paso, TX Records Very Unhealthy Air Quality Levels
EPA ·
Air Quality
Air Quality Alert for Fresno, CA: Unhealthy for Sensitive Groups (AQI 106)
EPA ·
Air Quality
Air Quality Alert: Houston-Galveston-Brazoria Area Reaches Unhealthy for Sensitive Groups Level
EPA ·
Air Quality
Air Quality Alert: Houston-Galveston-Brazoria Area Reaches Unhealthy Levels for Sensitive Groups
EPA ·
Air Quality
Air Quality Alert: Houston-Galveston-Brazoria Reaches Unhealthy for Sensitive Groups Level
EPA ·
Download the alert category summary cited on this page: areazine-alert-category-summary.csv (CC BY 4.0). Upstream sources and cadence are documented on /methodology.