Pittsburgh
 
Data and Forecasts courtesy of:
 

 
AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
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
 
Data and Forecasts courtesy of:
Current Conditions
Air Quality Index (AQI)
observed at 12:00 EST
68
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 24 Good
Particles (PM2.5) 68 Moderate
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
49
Good
Health Message: None
Air Quality Index (AQI)
65
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
49
Good
Particles (PM2.5)
65
Moderate
Forecast Discussion: *** Saturday’s Forecast: High pressure over the region early will give way to increasing clouds as a system set to bring some wintry weather Saturday afternoon/evening to the region approaches. This system will start a period of some wild weather over this forecast period. Calm wins will become south/southeasterly by the afternoon before the precipitation arrives. Best chances for snow will be in the higher elevations in the eastern portion of the region with questions remaining as to how far north and west the flakes will fly. Some locations may see a brief change to rain, but light to moderate accumulations are expected for much of the forecast area. A clean and drier air mass that moved into the area on Friday will help PM-2.5 concentrations start the day in the good range, see a brief rise in hourly values over the morning to hours, and then return to the good range with the precipitation arrival late afternoon to early evening. Highs for the day are only expected to reach the low to mid 30s which is quite the difference from the 60 degree weather just two days prior. Any accumulation will not last long as a warming trend quickly arrives on Sunday. *** Sunday’s Forecast: Warm air returns quickly on Sunday to melt away the freshly fallen snow. Winds will become westerly to southerly with the warm up occurring aloft quicker than at the surface. Temperatures at the surface will stay in the 30s for a bit for the locations that do receive snowfall before the snow melts in earnest under mid-February sunshine while then reaching the lower 40s. PM-2.5 concentrations are expected to climb into the moderate range for the day. *** Monday’s Forecast: Warm air will continue to lift northward on Monday, melting away any remaining snow still on the ground from late Saturday. A disturbance swinging through the region will bring a chance for rain showers during the daytime. Despite these showers and mostly cloudy conditions, temperatures will manage to climb into the 50s and even could approach the low 60s with a breezy southerly wind. PM-2.5 concentrations will hang around the high good to low moderate range. There will be some hours of moderate conditions due to the southerly flow and continual northward push of the warmer air mass but the precipitation and mixing from the breezy conditions will hold concentrations on average for the day to the high end of the good range. *** Tuesday’s Forecast: Breezy southwesterly flow on Tuesday will allow for the warm air aloft to mix down and help temperatures climb well into the 60s and quite possibly peaking in the low 70s. This is a classic stretch of days in Pennsylvania where a little bit of all four seasons is experienced over a single forecast period. The breezy flow will allow for some mixing, but PM-2.5 concentrations are expected to return to the moderate range, on average, with drier conditions than Monday. *** Extended Outlook: A cold front on Wednesday will return temperatures closer to normal for the remainder of the week, but they will remain unseasonably warm. Another round of precipitation is likely to accompany the cold front as winds turn northerly to help improve air quality conditions. Good air quality is expected for Wednesday and Thursday, though moderate conditions may return as early as Friday. --- Roble
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