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 11:00 EDT
43
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 29 Good
Particles (PM2.5) 43 Good
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
51
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
53
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
51
Moderate
Particles (PM2.5)
53
Moderate
Forecast Discussion: Current conditions: At 2 p.m. EDT this Monday afternoon, high pressure was continuing to bring unseasonably warm conditions to the area. This afternoon, Hurricane Maria was located 315 miles south-southeast of Cape Hatteras, North Carolina. Maria is moving to the north at 7 mph with maximum sustained winds at 80 mph. Maria is forecast to come close to the Outer Banks over the next 36 hours, then will turn to the northeast away from the United States east coast later on this week. A general north to northeasterly flow has kept PM2.5 in the upper good range, while sunshine and warmth have brought ozone to moderate levels. The unseasonably warm conditions will continue into the middle of this week, with a change to more seasonable temperatures coming later on in the week. For tonight, skies will be mostly clear with low temperatures only dropping into the middle 60s.(The normal high temperature for this point in September is only 72 degrees). *** Tuesday's forecast: Sunshine for the most part Tuesday with another warm afternoon as temperatures climb into the middle 80s. An easterly flow should limit ozone and fine particulate to no higher than the low moderate range. Another warm night Tuesday night as lows only drop close to 70. *** Extended forecast: A major change in the weather to more seasonable conditions will occur later on this week, with a strong northerly flow behind a cold front bringing back good air quality as well. Still rather warm with moderate air quality for Wednesday as the mercury maxes out in the upper 80s. A major step down in temperatures will occur Thursday into Friday in the wake of a cold front. Despite the cold frontal passage, not many opportunities for rainfall will exist this week.---McAuliffe
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