Lehigh Valley
 
Data and Forecasts courtesy of:
 

 
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
Air Quality Action Day Program | Current Air Quality Index | Forecast
 
State Air Quality Resources
Air Quality Partnership of Lehigh Valley - Berks
Air Quality Partnership of the Delaware Valley
Air Quality Partnership of the Susquehanna Valley
American Lung Association (ALA) of Pennsylvania
PA Allergy & Asthma Association
Pennsylvania DEP - BAQ - Contacts
Pennsylvania DEP - BAQ - Current Air Quality Index (AQI) by Area
Pennsylvania DEP - Bureau of Air Quality (BAQ)
Pennsylvania DEP – Air Quality Forecast Home Page
Pennsylvania DEP – Home Page
Southwest PA Air Quality Partnership
 
Data and Forecasts courtesy of:
Current Conditions
Air Quality Index (AQI)
observed at 3:00 EDT
30
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 25 Good
Particles (PM2.5) 30 Good
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
50
Good
Health Message: None
Air Quality Index (AQI)
61
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
50
Good
Particles (PM2.5)
35
Good
Ozone
61
Moderate
Particles (PM2.5)
51
Moderate
Forecast Discussion: Current Conditions: A much more comfortable air mass has descended on the area this Wednesday afternoon on a north to northwesterly flow. Both ozone and fine particulate are down in the good range as the air mass is rather clean. Tranquil weather will continue through Friday, then low pressure will act to bring unsettled weather just in time for the weekend. Tonight will be mostly clear and cool as low temperatures fall back to the middle 50s. *** Thursday's forecast: Sunshine for the most part during the day Thursday as high pressure moves overhead. Light winds and lots of sun may bring ozone into the moderate range in parts of the area, with fine particulate remaining good due to low humidity. *** Extended forecast: The extended period will start out dry, then rainfall chances will increase as we move into the weekend as low pressure slowly coming out of the Midwest teams up with low pressure near the Delmarva peninsula. Clouds and sunshine for Friday will send ozone to moderate levels once more, and increasing humidity may bring fine particulate into the moderate range as well. Both of these pollutants will be limited by onshore flow which is expected to develop. The weather over the weekend will turn unsettled with onshore flow from the southeast dominating. Ample mixing and cloud cover, along with increasing rainfall chances will keep ozone and PM2.5 down in the good range.---McAuliffe
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Yesterday's Maps and Data
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