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
ACHD website | Air Quality Action Day Program | Forecast | PADEP website
 
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
50 
Good
Particles (PM2.5)
60 
Moderate
Ozone
40 
Good
Forecast Discussion: Current Conditions: As of 2 PM on Tuesday, mostly cloudy skies prevail over the region as a line of showers propagates eastward through the Ohio Valley. Expect showers to begin to pop up across western PA later this afternoon as this line continues to advance closer to western PA. Right now, strong southerly winds are helping to force temperatures into the mid 80s. The combination of the warm and moist conditions over the region are helping to hold PM 2.5 levels within the moderate category while the continued cloud cover continues to impede ozone formation, reducing levels to the good range. Expect moderate air quality levels to continue into tomorrow as it remains warm and humid. *** Wednesday's Forecast: So for Wednesday, mostly cloudy skies will continue to persist during the day as a frontal system approaches the region from the west. The rain associated with this system could produce locally heavy downpours, which is why the National Weather Service has issued a Flash Flood Watch until 11 AM. The combination of the warm and humid conditions over the region will help to drive PM 2.5 levels into the moderate range again. The continual cloud cover and rain will keep ozone levels confined to the good range. *** Extended Outlook: Over the coming days, expect temperatures to remain slightly cooler than normal early on as a frontal system slowly moves through the northern Mid-Atlantic. There will be some breaks in the clouds as we head into the weekend as higher pressure builds in from the west. As the area of high pressure moves off to our east, expect warmer temperatures to build back in. Humidity levels will rise as well. The combination of the warmer, more humid air will allow for an increasing threat of more showers through the week next week. Overall, as the temperatures increase, so will the air quality levels. After falling off initially toward the good / moderate threshold, expect air quality levels to rebound into the moderate range over the weekend as the warm and moist air returns. Conditions will remain in the moderate range (primarily for PM 2.5) even as the chance of showers increase through the week. --Nolan

Current Conditions
Air Quality Index (AQI)
observed at 17:00 EDT
72
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 72 Moderate
Ozone 31 Good

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

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