Air Quality Alerts
Air quality alerts for U.S. metro areas when AQI exceeds unhealthy levels. Based on real-time EPA AirNow monitoring data.
Air Quality
Fresno, CA Air Quality Alert: PM2.5 Levels Reach Unhealthy for Sensitive Groups
EPA · 1h ago
Air Quality
Air Quality Alert: Mecklenburg County, NC Reaches Unhealthy for Sensitive Groups Level
EPA · 1h ago
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San Jose Air Quality Reaches Unhealthy for Sensitive Groups Level on March 20
EPA · 1h ago
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Air Quality Alert: Sacramento, CA Reaches Unhealthy for Sensitive Groups Level
EPA · 12h ago
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Air Quality Alert: S Central LA CO Reaches Unhealthy for Sensitive Groups Level
EPA · 12h ago
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Air Quality Alert: Fresno, CA Reaches Unhealthy for Sensitive Groups Level
EPA · 13h ago
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Air Quality Alert: Omaha, NE Reaches Unhealthy for Sensitive Groups Level
EPA · 1d ago
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Air Quality Alert: Kansas City Reaches Unhealthy for Sensitive Groups Level
EPA · 1d ago
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Air Quality Alert: Denver-Boulder Area Reaches Unhealthy for Sensitive Groups Level
EPA · 1d ago
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Air Quality Alert: Phoenix, AZ Reaches Unhealthy Levels for PM10 on March 20
EPA · 1d ago
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Air Quality Alert: Indianapolis, IN Reaches Unhealthy Levels (AQI 165)
EPA · 1d ago
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Air Quality Alert: Detroit, MI Reaches Unhealthy Levels on March 19
EPA · 1d ago
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Air Quality Alert: Indianapolis, IN Reaches Unhealthy for Sensitive Groups Level
EPA · 1d ago
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Air Quality Alert: Unhealthy for Sensitive Groups in South Central Los Angeles County
EPA · 1d ago
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Air Quality Alert: Twin Cities, MN Reaches Unhealthy for Sensitive Groups Level
EPA · 2d ago
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Kansas City Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups
EPA · 2d ago
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Air Quality Alert: Phoenix Residents Advised of Unhealthy Levels for Sensitive Groups
EPA · 2d ago
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Air Quality Alert: Las Vegas Reaches Unhealthy Levels for PM10
EPA · 2d ago
Air Quality high
Phoenix Air Quality Reaches Very Unhealthy Levels with AQI of 212
EPA · 2d ago
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Air Quality Alert: San Diego Coast Reaches Unhealthy for Sensitive Groups Level
EPA · 3d ago
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Air Quality Alert: Las Vegas Air Quality Reaches Unhealthy Levels for Sensitive Groups
EPA · 3d ago
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Air Quality Alert: Albuquerque, NM Reaches Unhealthy for Sensitive Groups Level
EPA · 3d ago
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Air Quality Alert: Phoenix, AZ Records Unhealthy PM10 Levels on March 17
EPA · 3d ago
Air Quality
Air Quality Alert: Tampa, FL Reaches Unhealthy for Sensitive Groups Level
EPA · Mar 30, 2026
Air Quality high
Air Quality Alert: Very Unhealthy Conditions Reported in El Paso, TX
EPA · Mar 29, 2026
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Austin, TX Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups
EPA · Mar 28, 2026
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San Antonio Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups Category
EPA · Mar 28, 2026
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Air Quality Alert: Philadelphia Residents Face Unhealthy Levels for Sensitive Groups
EPA · Mar 28, 2026
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Air Quality Alert: Oklahoma City, OK Reaches Unhealthy for Sensitive Groups Level
EPA · Mar 26, 2026
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Albuquerque Air Quality Reaches Unhealthy for Sensitive Groups Level on March 15
EPA · Mar 25, 2026
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Air Quality Alert: El Paso, TX Reaches Unhealthy Levels for PM10
EPA · Mar 25, 2026
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Air Quality Alert: Kansas City, MO Reaches Unhealthy for Sensitive Groups Level
EPA · Mar 25, 2026
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Detroit Air Quality Reaches Unhealthy Levels Due to Fine Particulate Matter
EPA · Mar 21, 2026
Air Quality
Phoenix Air Quality Reaches Unhealthy for Sensitive Groups Level Due to PM10
EPA · Mar 19, 2026
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Denver-Boulder Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA · Mar 18, 2026
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Albuquerque Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups
EPA · Mar 15, 2026
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Air Quality Alert: Atlanta, GA Reaches Unhealthy Levels (AQI 170)
EPA · Mar 9, 2026
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Albuquerque, NM Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups
EPA · Mar 9, 2026
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Air Quality Alert: El Paso, TX Air Quality Rated Unhealthy for Sensitive Groups
EPA · Mar 9, 2026
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Phoenix Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA · Mar 6, 2026
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Mecklenburg County Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA · Mar 5, 2026
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Phoenix, AZ Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups
EPA · Mar 5, 2026
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Chicago, IL Air Quality Alert: PM2.5 Levels Reach Unhealthy for Sensitive Groups
EPA · Mar 4, 2026
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Phoenix Air Quality Reaches Unhealthy Level for PM10
EPA · Mar 4, 2026
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Oklahoma City Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA · Mar 3, 2026
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Air Quality Alert: Anchorage, AK Reaches Unhealthy for Sensitive Groups Level
EPA · Mar 3, 2026
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Phoenix, AZ Air Quality Reaches Unhealthy Levels Due to PM10
EPA · Mar 3, 2026
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Air Quality Alert: Unhealthy Conditions Reported in Portland, OR
EPA · Mar 3, 2026
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Air Quality Alert: Oklahoma City Reaches Unhealthy for Sensitive Groups Level
EPA · Mar 2, 2026
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Air Quality Alert: Metro Baltimore Reaches Unhealthy for Sensitive Groups Level
EPA · Mar 1, 2026
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Nashville Air Quality Alert: PM2.5 Levels Reach Unhealthy for Sensitive Groups
EPA · Mar 1, 2026
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Austin, TX Air Quality Alert: Unhealthy for Sensitive Groups Due to Ozone
EPA · Mar 1, 2026
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Unhealthy Air Quality Alert for Seattle-Bellevue-Kent Valley: AQI Reaches 193
EPA · Feb 28, 2026
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Chicago, IL Air Quality Alert: PM2.5 Levels Reach Unhealthy Category
EPA · Feb 28, 2026
Air Quality
Kansas City Air Quality Reaches Unhealthy Levels Due to Ozone
EPA · Feb 28, 2026
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Unhealthy Air Quality Alert for Denver-Boulder, CO: PM10 Levels Reach 185
EPA · Feb 28, 2026
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Dallas-Fort Worth Air Quality Alert: PM2.5 Levels Reach Unhealthy for Sensitive Groups
EPA · Feb 27, 2026
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Air Quality Alert: Metro Baltimore, MD Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 27, 2026
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New York City Region Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 27, 2026
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Air Quality Alert: Unhealthy Conditions Reported in Albuquerque, NM
EPA · Feb 26, 2026
Air Quality high
Air Quality Alert: Denver-Boulder Reaches Very Unhealthy Levels for PM10
EPA · Feb 26, 2026
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Atlanta Air Quality Reaches Unhealthy for Sensitive Groups Level (AQI 110)
EPA · Feb 26, 2026
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Air Quality Alert: El Paso, TX Reaches Unhealthy Levels for Sensitive Groups
EPA · Feb 25, 2026
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Albuquerque Air Quality Reaches Unhealthy Levels on February 24
EPA · Feb 25, 2026
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Phoenix, AZ Air Quality Alert: PM10 Levels Unhealthy for Sensitive Groups
EPA · Feb 24, 2026
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Air Quality Alert: Las Vegas, NV Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 24, 2026
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Air Quality Alert: Houston-Galveston-Brazoria Area Reaches Unhealthy Levels for Sensitive Groups
EPA · Feb 24, 2026
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Air Quality Alert: Houston-Galveston-Brazoria Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 24, 2026
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Albuquerque Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 24, 2026
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Air Quality Alert: Denver-Boulder Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 24, 2026
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Air Quality Alert for Fresno, CA: Unhealthy for Sensitive Groups (AQI 106)
EPA · Feb 23, 2026
Air Quality
Air Quality Alert: Unhealthy for Sensitive Groups in S Central LA CO, CA
EPA · Feb 23, 2026
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San Jose Air Quality Alert: PM2.5 Levels Reach Unhealthy for Sensitive Groups
EPA · Feb 23, 2026
Air Quality
Air Quality Alert: Unhealthy Conditions Reported in El Paso, TX
EPA · Feb 22, 2026
Air Quality high
Air Quality Alert: Albuquerque, NM Reaches Very Unhealthy Levels (AQI 221)
EPA · Feb 22, 2026
Air Quality
Air Quality Alert: San Antonio, TX Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 21, 2026
Air Quality
Air Quality Alert: Atlanta, GA Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 21, 2026
Air Quality
Austin Air Quality Reaches Unhealthy for Sensitive Groups Level on February 19
EPA · Feb 20, 2026
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San Antonio Air Quality Reaches Unhealthy Levels for Sensitive Groups
EPA · Feb 20, 2026
Air Quality
Air Quality Alert: Houston-Galveston-Brazoria Area Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 20, 2026
Air Quality high
Hazardous Air Quality Alert for El Paso, TX: PM10 Levels Reach 351
EPA · Feb 19, 2026
Air Quality
Philadelphia Air Quality Alert: PM2.5 Levels Unhealthy for Sensitive Groups
EPA · Feb 19, 2026
Air Quality
Air Quality Alert: Wake County, NC Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 19, 2026
Air Quality
Air Quality Alert: Indianapolis, IN Reaches Unhealthy Levels for PM2.5
EPA · Feb 19, 2026
Air Quality high
Air Quality Alert: El Paso, TX Records Very Unhealthy Air Quality Levels
EPA · Feb 19, 2026
Air Quality
Air Quality Alert: Albuquerque Residents Face Unhealthy PM10 Levels
EPA · Feb 19, 2026
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Air Quality Alert: Salt Lake City Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 18, 2026
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Philadelphia Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 18, 2026
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Albuquerque Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups Category
EPA · Feb 18, 2026
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Air Quality Alert: Pittsburgh, PA Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 18, 2026
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Air Quality Alert: San Jose Residents Face Unhealthy Levels for Sensitive Groups
EPA · Feb 17, 2026
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El Paso Air Quality Reaches Unhealthy Levels Due to Particulate Matter (PM10)
EPA · Feb 17, 2026
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Phoenix Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups Category
EPA · Feb 17, 2026
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Air Quality Alert: El Paso, TX Reaches Unhealthy for Sensitive Groups Level (AQI 139)
EPA · Feb 17, 2026
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Las Vegas Air Quality Reaches Unhealthy Levels with PM10 AQI of 157
EPA · Feb 16, 2026
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Air Quality Alert: Phoenix, AZ Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 16, 2026
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Pittsburgh Air Quality Reaches Unhealthy for Sensitive Groups Level (AQI 124)
EPA · Feb 16, 2026
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Air Quality Alert: Chicago, IL Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 16, 2026
Air Quality
Detroit Air Quality Reaches Unhealthy Levels for Sensitive Groups (AQI 131)
EPA · Feb 16, 2026
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Air Quality Alert: New York City Region Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 15, 2026
Air Quality
Chicago Air Quality Reaches Unhealthy for Sensitive Groups Level (AQI 107)
EPA · Feb 15, 2026
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Atlanta, GA Air Quality Alert: PM2.5 Levels Reach Unhealthy for Sensitive Groups
EPA · Feb 15, 2026
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Air Quality Alert: Philadelphia Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 15, 2026
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Air Quality Alert: Philadelphia, PA Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 15, 2026
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Air Quality Alert: Milwaukee-Ozaukee Area Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 15, 2026
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Chicago Air Quality Reaches Unhealthy for Sensitive Groups Level (AQI 110)
EPA · Feb 14, 2026
Air Quality
Detroit Air Quality Reaches Unhealthy for Sensitive Groups Level (AQI 139)
EPA · Feb 14, 2026
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Atlanta, GA Air Quality Alert: Unhealthy for Sensitive Groups (AQI 106)
EPA · Feb 14, 2026
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Cincinnati Air Quality Alert: PM2.5 Levels Reach Unhealthy for Sensitive Groups
EPA · Feb 14, 2026
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Air Quality Alert: St. Louis (Metro-east) Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 14, 2026
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Air Quality Alert: Phoenix Air Quality Reaches Unhealthy Levels for Sensitive Groups
EPA · Feb 13, 2026
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Air Quality Alert: Detroit, MI Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 13, 2026
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Indianapolis Air Quality Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 13, 2026
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Air Quality Alert: El Paso, TX Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 13, 2026
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Air Quality Alert: El Paso, TX Reaches Unhealthy for Sensitive Groups Level (AQI 127)
EPA · Feb 13, 2026
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Air Quality Alert: Dallas-Fort Worth Reaches Unhealthy for Sensitive Groups Level
EPA · Feb 12, 2026
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Phoenix, AZ Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups Category
EPA · Feb 12, 2026
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Indianapolis Air Quality Alert: PM2.5 Levels Reach Unhealthy for Sensitive Groups
EPA · Feb 12, 2026
Air Quality
Air Quality Alert: Detroit, MI Reaches Unhealthy Levels with AQI of 187
EPA · Feb 12, 2026
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Phoenix Air Quality Alert: PM10 Levels Reach Unhealthy for Sensitive Groups
EPA · Feb 11, 2026
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New York City Region Air Quality Reaches Unhealthy for Sensitive Groups Level (AQI 107)
EPA · Feb 11, 2026