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 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)
50 
Good
Health Message: None
Air Quality Index (AQI)
55 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
50 
Good
Particles (PM2.5)
45 
Good
Ozone
55 
Moderate
Particles (PM2.5)
50 
Good
Forecast Discussion: Current Conditions: As of 2 PM on Tuesday, partly cloudy skies prevail over the region as an area of high pressure continues to dominate our weather. Right now, light southerly winds are helping to drive temperatures toward the 80 degree mark. It is the fairly dry air mass (with dewpoints hovering in the mid 50s) that is controlling how high ozone and PM 2.5 levels rise today. In fact, air quality levels are currently hovering in the good range. Expect a slight degradation in the air quality tomorrow as even warmer air moves into the region. *** Wednesday's Forecast: On Wednesday, a mix of sun and clouds will continue to persist over the region as the area of high pressure, which was directly overhead of the Commonwealth on Tuesday, begins to jog eastward. The return flow on the backside of the high will be out of the south, allowing temperatures to climb into the mid 80s. The combination of the warm temperatures and slightly increasing dewpoint temperatures (readings should rise into the low 60s by the afternoon) will force ozone to increase to near the good / moderate threshold. PM 2.5 levels will also be on the rise and should still be near the good / moderate category. *** Extended Outlook: Over the coming days, expect temperatures to remain slightly above seasonable levels as the overall pattern stays progressive early on. Here is how things are shaping up... On Thursday into Friday, expect increasing cloudiness as a frontal system pushes across the northeastern US. This frontal system is likely to trigger some shower development over our area before pushing off to our east. Over the weekend, a ridge of high pressure will reestablish itself across the eastern US. This ridge will promote sunny skies and while keeping temperatures within the low to mid 80s as we head into the new work week next week. Overall, air quality levels are expected to fall early on after the frontal system pushes through and forces a drier air mass in. Early next week, dewpoint temperatures will begin to rebound and force air quality levels back to closer to the good / moderate threshold after falling into the good range post frontal passage. --Nolan

Current Conditions
Air Quality Index (AQI)
observed at 22:00 EDT
52
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
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
Ozone 48 Good
Particles (PM2.5) 52 Moderate

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