Delaware
 
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AQI Forecast - http://files.airnowtech.org/airnow/today/forecast_aqi_20150903_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
 
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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)
101 
Unhealthy for Sensitive Groups
Health Message: Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy exertion outdoors.
ACTION DAY
Air Quality Index (AQI)
67 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
101 
Unhealthy for Sensitive Groups
Particles (PM2.5)
78 
Moderate
Ozone
67 
Moderate
Particles (PM2.5)
61 
Moderate
Forecast Discussion: Thursday is an Air Quality Action Day for the State of Delaware for Code Orange (Unhealthy for Sensitive Groups; USG) ozone! Thursday will be another hot, humid, and hazy day. After a period of fog in the morning, mostly sunny skies and light surface will promote ozone formation. After two days in a row of hot, sunny, and stagnant conditions, with upper Moderate ozone air quality, ozone is expected to reach into the USG range on Thursday. Particle concentrations will persist in the mid-Moderate range in the humid and stagnant air mass, with contributions from smoke transported from the western U.S. wildfires. A weak “back door” (north to south moving) cold front will approach northern Delaware in the evening, but it is not expected to produce widespread clouds or rain that would decrease ozone concentrations. **Extended Forecast: Temperatures will finally drop on Friday as winds turn onshore (northeasterly) and bring cooler and cleaner maritime air into the state. It will still be humid, and particles will decrease but remain in the Moderate range. Scattered clouds and the chance for an afternoon thunderstorm will limit ozone to the Moderate range. Saturday will be a pleasant start to the holiday weekend, with sunny skies, near average temperatures, and lower humidity. Both ozone and particles will return to the Good range under the influence of strong onshore flow. -Huff

Current Conditions
Air Quality Index (AQI)
observed at 10:00 EDT
88
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 88 Moderate
Ozone 31 Good

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