Lehigh Valley
 
Data courtesy of:
 

 
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
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
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
69 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
61 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
69 
Moderate
Ozone
48 
Good
Particles (PM2.5)
61 
Moderate
Ozone
43 
Good
Forecast Discussion: Current Conditions: At 2 p.m. EDT this Thursday afternoon, skies were partly sunny across the region with a stationary frontal boundary draped across Virginia. Waves of low pressure along this boundary will bring some clouds for us over the next couple of days, with perhaps a shower or two reaching in as well across the far south. More clouds than sunshine into the holiday weekend will promote low levels of ozone. While smoke from fires originating in southern Canada has started to dissipate some, mostly moderate levels of PM2.5 will continue for the short range. Moonlight with some cloudiness tonight, with low temperatures near 60 degrees. Fine particulate will continue to be in the moderate range. *** Friday's forecast: Cloudy to partly sunny for the day Friday as a stationary frontal boundary remains just to our south. A shower or thunderstorm might still sneak into far southern parts of the area later in the day or Friday evening. Ozone should remain in the upper good range, while light winds and little mixing will keep fine particulate in the lower moderate range. *** Independence Day forecast: More clouds than sunshine for the Fourth with perhaps a shower or two affecting the area, though most of the day should be dry. Cool with afternoon temperatures in the middle to upper 70s. Ozone readings will continue to be on the low side, while fine particulate averages in the upper good to lower moderate range depending on the strength of any onshore flow. *** Sunday's forecast: A new area of high pressure will build into the area for Sunday, bringing more in the way of sunshine and warmer air. Ozone levels will be on the rise, perhaps into the lower moderate range in spots. Limited mixing will keep fine particulate in the moderate range. *** Monday's forecast: Periods of clouds and sunshine, warm and more humid on Monday. Winds will shift into a southwest direction, and this will bring in higher levels of fine particulate as well as ozone. Both of these pollutants are expected to be in the moderate range. *** Extended forecast: Typical warm and humid summertime conditions will continue into the middle of next week with increasing chances for showers and thunderstorms. In addition, a surface low expected to develop off of the Virginia coast might add more clouds, improving ozone levels to more good by Wednesday. Fine particulate will remain moderate due to high humidity, light winds, and little mixing.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 12:00 EDT
30
Good
Health Message: None
AQI - Pollutant Details
Ozone 30 Good
Particles (PM2.5) 27 Good

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