Pittsburgh
 
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
Current Air Quality Index | Forecast | Ozone Action Program
 
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)
60 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
60 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
60 
Moderate
Ozone
40 
Good
Particles (PM2.5)
60 
Moderate
Ozone
45 
Good
Forecast Discussion: The Weekend Forecast: On Saturday, mostly cloudy skies will persist as the storm system along the East Coast continues to spin along the coastline. Showers will spin around the center of the storm and could produce some showers later in the day across our area. The cloud cover and afternoon rain chances should keep temperatures within the upper 70s. Air quality levels are expected to range in the moderate range primarily due to PM 2.5's ability to thrive in a warm and moist environment. Ozone will stay low due to cloud cover and the rain. *** For Sunday, mostly cloudy skies will persist for much of the day as the storm system, which has been along the East Coast for the last couple of days, finally begins to pull out to sea. We will see some lingering showers before the storm moves out. Winds will be out of the north as a new area of high pressure over the Great Lakes begins to take over our flow. Even with the cloud cover, afternoon temperatures should peak near the 80 degree mark. Air quality levels should remain in the moderate range. Even with the winds turning out of the north, the air mass will continue to have elevated PM 2.5 levels. Ozone again will be limited due to the cloud cover. *** On Monday, expect the skies to turn mostly sunny as the area of high pressure, which was over the Great Lakes on Sunday, continues to dive south and east across the region. As a result, winds will begin to turn more out of the east, southeast, allowing warmer temperatures to build in. Overall, afternoon highs are expected to range in the low 80s. Air quality levels over the region will continue to be elevated as the seasonably warm and humid conditions persist. PM 2.5 will continue to be in the moderate range while more sunshine should result in more ozone and likely reaching close to the good / moderate threshold. *** Extended Outlook: As we take a peek into next week, we notice the week will start off on the wet side as a storm system continues to plague the Mid-Atlantic region with rain. This system will move out into the Atlantic early in the week. At the same time, a new area of high pressure will begin to build in from the west. It is this high that will help clear the skies while allowing warmer temperatures to build in. This high will continue to be the primary weather feature over our region until the weekend. Late in the week, the high pressure system will move off to our east and allow a more humid air mass to move in. At the same time, a new frontal system will move in over the Great Lakes / Ohio Valley region. This system is slated to push into our area over the weekend, spreading rain along its boundary. Overall, air quality levels during the period are expected to remain elevated. PM 2.5 levels is expected to remain in the moderate range and ozone is expected to fluctuate between the good and moderate range, depending on the daily cloud cover over the area. --Nolan

Current Conditions
Air Quality Index (AQI)
observed at 18:00 EDT
104
Unhealthy for Sensitive Groups
Health Message: Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone 104 Unhealthy for Sensitive Groups
Particles (PM2.5) 73 Moderate

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