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)
44 
Good
Health Message: None
Air Quality Index (AQI)
48 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
44 
Good
Ozone
40 
Good
Particles (PM2.5)
48 
Good
Ozone
48 
Good
Forecast Discussion: Current Conditions: At 2 p.m. EDT this Thursday afternoon, a cool front was moving across central parts of Pennsylvania. Behind it, a cleaner air mass will move in for later tonight into the day Friday. Due to clouds and shower activity this afternoon, ozone has improved into the good range. Fine particulate will continue at moderate levels into this evening, when drier air starts to move in. Partly to mostly moonlit tonight with temperatures dropping into the middle 60s. *** Friday's forecast: High pressure will provide a nice, warm day for Friday with plenty of sunshine. Despite full sun, ozone will remain in the upper good range, while drier air and northwest winds will bring fine particulate down into the good range as well. High temperatures will reach into the middle and upper 80s. Moonlit and seasonable Friday night with lows in the middle 60s. *** Extended forecast: Mainly dry and seasonably warm weather is in store for the weekend. A weak frontal system might spark a shower or thundershower Saturday afternoon, but coverage is expected to be limited with a partly sunny sky. Enough mixing should continue to keep fine particulate into the upper good range, while ozone remains in the upper good category as well. Lower moderate levels of ozone and fine particulate can be expected on Sunday with sunshine and a few clouds. Temperatures will max out in the upper 80s. The highest concentrations for ozone and PM are likely to occur on Monday with light southwest winds, limited chances for convection, and highs in the lower 90s. A stronger cold front will then move through the area early Tuesday, and bring in not only drier, but also cooler air and good air quality by the middle of next week.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 6:00 EDT
52
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 52 Moderate
Ozone 1 Good

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