Northern Delaware
 
Data courtesy of:
 

AQI Forecast - http://www.epa.gov/airnow/today/forecast_aqi_20140917_va_wv_md_de_dc.jpg
 
Legend: National Parks/Monuments National Parks/Monuments
 - http://www.epa.gov/airnow/today/cur_aqi_va_wv_md_de_dc.jpg
 
Legend: National Parks/Monuments National Parks/Monuments
AQI Animation - http://www.epa.gov/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)
41 
Good
Health Message: None
Air Quality Index (AQI)
53 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Ozone
41 
Good
Particles (PM2.5)
40 
Good
Particles (PM2.5)
53 
Moderate
Ozone
49 
Good
Forecast Discussion: A weak cold front will move through Delaware on Thursday. A slight increase in cloud cover and a shift in surface winds to the north may be the only discernable impacts. Wind speeds will be light all day, with mostly calm conditions in the morning. Aloft, transport will be very localized. Despite the relatively dry regional air mass, this stagnation will limit dispersion of pollutants and allow particles to increase into the low Moderate range, with the highest concentrations expected through the morning. Given the relatively low regional ozone levels and waning hours of sunlight at this time of year, ozone will be limited to the upper Good range on Thursday. **Extended Forecast: A reinforcing pulse of cool and dry air will build in from the north on Friday. Breezy onshore winds will promote Good air quality. Temperatures will rebound to near normal and humidity will begin to increase on Saturday, but continued onshore flow will keep air quality in the Good range. -Huff

Current Conditions
Air Quality Index (AQI)
observed at 15:00 EDT
35
Good
Health Message: None
AQI - Pollutant Details
Ozone 35 Good
Particles (PM2.5) 23 Good

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