Delaware
 
Data courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20160726_va_wv_md_de_dc.jpg Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments
 - https://files.airnowtech.org/airnow/today/cur_aqi_va_wv_md_de_dc.jpg Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments
AQI Animation - https://files.airnowtech.org/airnow/today/anim_aqi_va_wv_md_de_dc.gif Map Map Map Map Map Map Map Map Map Map Map Map
 
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 Day
 
Local Air Quality Resources
 
State Air Quality Resources
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)
93 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
87 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
93 
Moderate
Particles (PM2.5)
53 
Moderate
Ozone
87 
Moderate
Particles (PM2.5)
46 
Good
Forecast Discussion: A cool front will pass through Delaware from north to south on Tuesday, reaching the vicinity of the Delaware/Virginia state line by the afternoon. Temperatures will not drop much in the wake of the front, with highs continuing in the mid-90s °F, but a slightly less humid and cleaner air mass will filter in. The arrival of cleaner air will limit ozone formation across most of the state, but a sea breeze along the southeastern coast may act as a line of convergence and keep ozone near the top of the Moderate range. Particles will remain in the low Moderate range for another day until the drier air fully builds in on Wednesday. **Extended Forecast: Wednesday will be a mostly clear and sunny day for northern Delaware, with a chance of afternoon clouds and thunderstorms in the central and southern parts of the state. Winds are expected to go calm in the afternoon, which, along with plenty of afternoon sun, will allow ozone to climb higher into the Moderate range in northern Delaware. Particles will drop into the Good range due to the presence of drier air behind Tuesday’s frontal passage. On Thursday, the front will move northward, bringing afternoon clouds and thunderstorms to entire state and dropping ozone lower into the Moderate range. Particles will rebound back into the Moderate range due to increasing humidity and a period of stagnation during the morning. -Brown/Huff

Current Conditions
Air Quality Index (AQI)
observed at 7:00 EDT
23
Good
Health Message: None
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.
AQI - Pollutant Details
Ozone 22 Good
Particles (PM2.5) 23 Good

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