Delaware
 
Data courtesy of:
 

AQI Forecast - http://files.airnowtech.org/airnow/today/forecast_aqi_20150729_va_wv_md_de_dc.jpg
 
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 - 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)
61 
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)
57 
Moderate
Ozone
61 
Moderate
Particles (PM2.5)
59 
Moderate
Forecast Discussion: Wednesday will be an Air Quality Action Day for the state of Delaware for Unhealthy for Sensitive Groups (USG) ozone. Temperatures in the low 90s ? F, mostly sunny skies, light surface winds, and carry-over of ozone from Tuesday will all be important factors contributing to the increased ozone levels. The highest ozone concentrations are expected in northern Delaware due to light southerly surface winds, which will push the ozone precursors towards the northern end of the state. Particles will also reach into the Moderate range as the heat and humidity continue. **Extended Forecast: As a weak cold front approaches the state on Thursday, dew points will rise and make for an oppressively hot and humid day. Increasing cloud cover in the afternoon will push ozone down into the Moderate range. Particle concentrations statewide will remain in the Moderate range as dew points climb into the 70s ? F. Friday will be another day of Moderate ozone as the front stalls just east of the state and surface winds shift westerly, bringing emissions from the I-95 Corridor through Delaware. Coupled with sunny skies and continuing heat, these emissions will help ozone reach into the Moderate range. Particles will fall into the Good/Moderate threshold as dew points drop and a cleaner air mass builds into the state behind the front. -Eherts/DeBoe/Huff

Current Conditions
Air Quality Index (AQI)
observed at 11:00 EDT
33
Good
Health Message: None
AQI - Pollutant Details
Ozone 33 Good
Particles (PM2.5) 32 Good

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