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)
39 
Good
Health Message: None
Air Quality Index (AQI)
51 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
39 
Good
Particles (PM2.5)
51 
Moderate
Forecast Discussion: Current Conditions: A weak area of high pressure is keeping the weather quiet across the region this Friday afternoon, but a strong Arctic cold front continues to sweep southward from the Great Lakes. This front will move through the area tonight, and the coldest air of the winter will be behind it Saturday into Sunday. With mixing increasing this afternoon, fine particulate levels are moving down into the good range. For tonight, the Arctic front will be coming through later on with a quick snow squall which will drop a coating to as much as an inch of snow. Low temperatures will fall into the middle teens. *** Saturday's forecast: Blustery and very cold for the day Saturday with temperatures remaining in the middle teens. Wind chill values will be below zero, and strong winds will mean low values of PM. Any sunshine we do get will be ineffective, and a snow shower or two will also occur. Turning out mostly clear and cold Saturday night with low temperatures below zero in the colder valley areas where the wind does drop off. *** Sunday's forecast: High pressure will build into the area for Sunday, resulting in less wind and more sunshine. Even though temperatures will struggle to reach 20 degrees, it will feel less harsh. While fine particulate values rise some Sunday, they will remain in the upper good range. Partly cloudy and not as cold Sunday night with lows dropping into the lower to middle teens. *** Monday's forecast: Sunshine will be followed by clouds on Monday as a storm coming out of the southern Plains takes aim at the area. Light winds and limited mixing may bring moderate levels of fine particulate. Afternoon temperatures will reach close to 30 with snow possible later in the afternoon. Periods of snow Monday night may turn to sleet or freezing rain later on as warmer air comes in aloft. Temperatures will remain around 30 degrees. *** Tuesday's forecast: Tuesday, a storm is expected to track near to us or just to the west. Enough mild air may come in to where temperatures are high enough for just plain rain by the afternoon, but the morning at this point looks messy. High temperatures recovering to the upper 30s with precipitation washout bringing good air quality. *** Extended forecast: A warming trend is foreseen for the latter part of next week as winds in the upper levels of the atmosphere turn more westerly. Brisk and seasonably cold Wednesday with a snow shower or two, and good air quality will occur. High pressure will move overhead and then to our east, turning the winds into a southwesterly direction later on next week. High temperatures by Friday may reach well into the 40s with the southwest winds and enough sunshine.---McAuliffe

Current Conditions
Air Quality Index (AQI)
observed at 15:00 EST
32
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
Particles (PM2.5) 32 Good
Ozone 28 Good

Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

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