Delaware
 
Data and Forecasts courtesy of:
 

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AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
Action DayAction 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
 
Data and Forecasts courtesy of:
Current Conditions
Air Quality Index (AQI)
observed at 3:00 EDT
53
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
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 40 Good
Particles (PM2.5) 53 Moderate
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
47
Good
Health Message: None
Air Quality Index (AQI)
43
Good
Health Message: None
AQI - Pollutant Details
Ozone
47
Good
Particles (PM2.5)
38
Good
Ozone
43
Good
Particles (PM2.5)
29
Good
Forecast Discussion: **Update for Monday: Ozone has surged into the upper Moderate range at locations in northern Delaware along I-95 on Monday afternoon. Surface winds were much calmer than predicted, and the expected clean southerly flow has not developed as quickly as forecasted. Sensitive individuals should monitor conditions closely as the afternoon progresses. **Tuesday’s Forecast: A strong cold front will move into the state on Tuesday afternoon. Widespread showers and thunderstorms will develop ahead of the front, with periods of heavy rain likely. Sunshine in the morning will allow for some ozone formation, but the arrival of the pre-frontal clouds and precipitation in the afternoon will hold daily average ozone to the Good range. Particles will also fall further into the Good range in response to periods of heavy rain. **Extended Forecast: Strong northerly flow aloft will usher in a noticeably less humid and clean air mass into the state on Wednesday, allowing Good air quality to continue. Pleasant conditions will persist on Thursday as high pressure builds overhead. Mostly sunny skies and diminishing surface winds along the I-95 Corridor will allow ozone to rebound into the low Moderate range. Particles will remain in the Good range due to low atmospheric moisture. -Enlow/Huff
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