Delaware
 
Data and Forecasts courtesy of:
 

 - https://files.airnowtech.org/airnow/today/cur_aqi_va_wv_md_de_dc.jpg Map Map Map Map Map Map Map Map Map Map Map Map
 
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AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20180723_va_wv_md_de_dc.jpg Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments
 - https://files.airnowtech.org/airnow/today/cur_aqi_va_wv_md_de_dc.jpg Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments
 - https://files.airnowtech.org/airnow/today/cur_aqi_va_wv_md_de_dc.jpg Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments
AQI Animation - https://files.airnowtech.org/airnow/today/anim_aqi_va_wv_md_de_dc.gif Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments
AQI Animation - https://files.airnowtech.org/airnow/today/anim_aqi_va_wv_md_de_dc.gif Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments
AQI Animation - https://files.airnowtech.org/airnow/today/anim_aqi_va_wv_md_de_dc.gif Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments
 
AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
Action DayAction Day
 
Local Air Quality Resources
 
State Air Quality Resources
American Lung Association (ALA) of Delaware
Delaware AQM - Contacts List
Delaware Division of Air Quality
Delaware's Air Quality Monitoring
 
Data and Forecasts courtesy of:
Current Conditions
Air Quality Index (AQI)
observed at 3:00 EDT
41
Good
Health Message: None
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.
AQI - Pollutant Details
Ozone 27 Good
Particles (PM2.5) 41 Good
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
31
Good
Health Message: None
Air Quality Index (AQI)
31
Good
Health Message: None
AQI - Pollutant Details
Ozone
31
Good
Particles (PM2.5)
21
Good
Ozone
31
Good
Particles (PM2.5)
21
Good
Forecast Discussion: A coastal storm lifting northward along the Atlantic Coast on Saturday will bring a weekend of unsettled conditions to the State of Delaware. Widespread and locally heavy precipitation is expected to begin in the morning and continue throughout the afternoon. A combination of this precipitation and strong onshore (easterly) winds will limit ozone and particles to the Good range on Saturday. Unsettled conditions will persist on Sunday but will not be as widespread as Saturday. Scattered showers and thunderstorms are possible in the wake of the coastal storm as sustained southerly surface winds will begin to usher a tropical air mass into the state. Another day of onshore flow, mostly cloudy skies, and scattered precipitation will ensure Good air quality on Sunday. Widespread precipitation will impact the state on Monday as strong southerly flow aloft continues to bring a very humid air mass northward into the area. Locally heavy precipitation and lack of sunshine will push ozone and particles lower in the Good range. **Extended Forecast: Similar to Monday, strong southerly flow aloft will maintain a very humid air mass in the state on Tuesday, promoting widespread and locally heavy precipitation. A second straight day of precipitation and sustained southerly transport aloft and at the surface will allow Good air quality to persist on Tuesday. -Enlow/Huff
Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)