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)
37 
Good
Health Message: None
Air Quality Index (AQI)
41 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
37 
Good
Particles (PM2.5)
41 
Good
Forecast Discussion: Current Conditions: Much colder air has moved back into the region this Friday afternoon, and with north to northwesterly winds bringing drier air in, fine particulate levels are dropping into the good range in most locations. Temperatures are some 20-25 degrees lower than yesterday afternoon. Brisk north to northwest flow will continue to keep PM2.5 concentrations low tonight into the day Saturday. Clouds for the most part tonight with a rain or snow shower in spots with low temperatures close to 30 degrees. *** Saturday's forecast: Unseasonably cold weather will start off the weekend with temperatures no better than the upper 30s. High amounts of mixing and ventilation will bring low levels of PM2.5 throughout the day, and some sunshine will also appear. Partly cloudy and very cold Saturday night with lows near 20 in the colder spots. *** Sunday's forecast: High pressure will be located across the Mid-Atlantic region on Sunday, and allow for a mostly westerly flow. While PM levels might rise Sunday, they will not get out of the good range. A little milder with more sunshine Sunday afternoon with highs in the middle 40s. *** Monday's forecast: Breezy and more seasonable on Monday with a partly sunny sky. High amounts of mixing will result in fine particulate staying in the good zone. Afternoon temperatures mainly in the lower to middle 50s. *** Extended forecast: Overall air quality will start off good early in the period, then might deteriorate into moderate concentrations by the middle of the week with warmer and more humid air coming in from the south and southwest. Temperatures by Wednesday might return to more normal levels for the beginning of April. Another cold front may then affect us with showers by the end of next week. --McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 11:00 EDT
28
Good
Health Message: None
AQI - Pollutant Details
Ozone 28 Good
Particles (PM2.5) 18 Good

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