Delaware
 
Data courtesy of:
 

AQI Forecast - http://files.airnowtech.org/airnow/today/forecast_aqi_20150731_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)
47 
Good
Health Message: None
Air Quality Index (AQI)
54 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
47 
Good
Particles (PM2.5)
33 
Good
Ozone
54 
Moderate
Particles (PM2.5)
42 
Good
Forecast Discussion: Saturday will be warm, with sustained surface winds prevailing from the west throughout the day. The origin of the air aloft will be from the Ohio River Valley, an area rich in ozone precursors. A weak cold front moving into the state will place an area of converging winds near the coast, bringing together the less clean air from above and emissions from the I-95 Corridor. These factors will push ozone into the Moderate range. Particles are expected to stay in the Good range due to average humidity and sustained surface winds. **Extended Forecast: Sunday’s ozone concentrations will continue to rise into the low Moderate range as full sun and light winds prevail. Ozone formation will be limited to this range due to lower weekend emissions and surface winds shifting onshore. Particles will reach to the Good/Moderate threshold due to morning stagnation. On Monday, an approaching cold front will bring periods of cloudiness to Delaware, limiting ozone to the Good range. Southerly surface winds and increasing humidity ahead of the front will bring particles into the Moderate range. -Eherts/DeBoe/Ryan

Current Conditions
Air Quality Index (AQI)
observed at 18:00 EDT
61
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone 61 Moderate
Particles (PM2.5) 31 Good

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