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
 
Legend: National Parks/Monuments National Parks/Monuments
AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20190523_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: 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 Division of Air Quality
Delaware's Air Quality Monitoring
 
Data and Forecasts courtesy of:
Current Conditions
Air Quality Index (AQI)
observed at 20:00 EDT
44
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 44 Good
Particles (PM2.5) 39 Good
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
50
Good
Health Message: None
Air Quality Index (AQI)
46
Good
Health Message: None
AQI - Pollutant Details
Ozone
50
Good
Particles (PM2.5)
35
Good
Ozone
46
Good
Particles (PM2.5)
25
Good
Forecast Discussion: Thunderstorm activity has been more persistent than expected through Thursday afternoon, which has kept ozone limited to the Good range. Additional rounds of thunderstorms will move through the state late Thursday afternoon and evening ahead of an approaching cool front. Behind the front on Friday, a seasonable air mass with comfortable humidity will arrive on breezy northwesterly winds. This clean air mass will provide for Good ozone and particle air quality. **Extended Forecast: Saturday will also be seasonable, but humidity will creep up in the afternoon as a warm front lifts over the region. Mostly sunny skies and lighter surface winds will allow ozone to rise into the Moderate range, while particles will linger in the Good range. Sunday will be very warm and humid ahead of another weak cold front approaching from the northwest. The front may trigger scattered thunderstorms in the late afternoon to early evening as it makes its way into the forecast area. Ozone will rise higher in the Moderate range, and particles will reach the upper Good range. -Huff
Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)