Delaware
 
Data courtesy of:
 

AQI Forecast - http://files.airnowtech.org/airnow/today/forecast_aqi_20150727_va_wv_md_de_dc.jpg
 
Legend: National Parks/Monuments National Parks/Monuments
 - http://files.airnowtech.org/airnow/today/cur_aqi_va_wv_md_de_dc.jpg
 
Legend: National Parks/Monuments National Parks/Monuments
AQI Animation - http://files.airnowtech.org/airnow/today/anim_aqi_va_wv_md_de_dc.gif
 
Legend: National Parks/Monuments National Parks/Monuments
 
AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
 
Local Air Quality Resources
 
State Air Quality Resources
Air Quality Partnership of the Delaware Valley
American Lung Association (ALA) of Delaware
Delaware AQM - Contacts List
Delaware Division of Air Quality
Delaware's Air Quality Monitoring
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
50 
Good
Health Message: None
Air Quality Index (AQI)
77 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Particles (PM2.5)
50 
Good
Ozone
49 
Good
Ozone
77 
Moderate
Particles (PM2.5)
53 
Moderate
Forecast Discussion: Ozone will quickly rebound into the upper Moderate range in Delaware on Tuesday when the sun comes out, aided by calm and converging surface winds, and locally sourced air aloft. Particles will linger in the Moderate range as well as humid conditions continue. The highest concentrations of ozone are most likely near the I-95 Corridor in northern Delaware. **Extended Forecast: Wednesday’s weather will be very similar to Tuesday’s, but with stronger southerly surface winds. This will bring a slightly cleaner air mass into the state and push the highest ozone and particle concentrations to the northern tip of Delaware. Thursday will be another hot and humid day, with cloud cover and surface winds increasing throughout the day ahead of an approaching cold front. Frontal thunderstorms and sustained surface winds will arrive late enough in the day to allow daily ozone to remain in the Moderate range for another day. -Eherts/DeBoe/Huff

Current Conditions
Air Quality Index (AQI)
observed at 20:00 EDT
42
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5) 42 Good
Ozone 31 Good

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Yesterday's Maps and Data
Air Quality Maps Archives (by region)