Pittsburgh
 
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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)
40 
Good
Health Message: None
Air Quality Index (AQI)
40 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
40 
Good
Particles (PM2.5)
40 
Good
Forecast Discussion: Current Conditions: As of 2 PM on Monday, mostly cloudy skies prevail over the region as higher pressure remains in place along the eastern seaboard. This ridge of high pressure is flowing northward between two systems, a very strong area of low pressure in the western Atlantic (which is impacting the New England states today) and another area of low pressure moving through the Great Lakes / Ohio Valley region. Right now, southwesterly flow is driving in warmer air (readings are hovering in the upper 40s). However, a cold front, associated with our Great Lakes / Ohio Valley low pressure system, is on our doorstep. In advance of the cold front, PM 2.5 levels have remained elevated near the good / moderate threshold. Expect better air quality tomorrow as colder, drier air begins to build in. *** Tuesday's Forecast: So for Tuesday, mostly cloudy skies will continue to persist across southwestern PA as the storm system, which was off to our west for the first half of Monday, moves east and over our area. As a result, expect periods of snow during the morning hours. Snow will begin to tapper in the afternoon as the storm system moves eastward. The passing of the storm system will allow a cold front to press through the region. On the backside of the frontal passage, colder, drier air will begin to build in. In fact, afternoon highs are only expected to reach into the low 30s. The combination of the cool and dry conditions along with the moderate wind flow will drop PM 2.5 concentrations back down in the good range. *** Extended Outlook: Over the coming days, expect the cold streak to continue through the period as we receive reinforcing shots of cold from Canada. Here are how things are shaping up... On Wednesday, expect temperatures to remain cold as an area of high pressure builds in over the Plains. This high will shift east during the second half of the week. At the same time, a new arctic front will move through the Midwestern US and into the Great Lakes region. This front is expected to press through our area overnight Friday into Saturday. At that time, the coldest temperatures of the season will build southward over our area. Expect highs in the 10s for Saturday and Sunday. Overall, air quality levels during the time frame will remain in the good range because of the source of the air mass... the cold and dry conditions coming from a continental region will limit PM 2.5 precursors and force air quality levels to remain low. --Nolan

Current Conditions
Air Quality Index (AQI)
observed at 12:00 EST
56
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
Particles (PM2.5) 56 Moderate
Ozone 18 Good

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