Highest air pollution Mount Washington - Pittsburgh, today and tomorrow
Today (30 June): Air quality in Mount Washington is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 38.8/100).
Tomorrow (1 July 2026): Air quality in Mount Washington is fair. All pollutants stay as today. Pollution peaks around 1:00 PM (O3: 31.0/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Pittsburgh's Mount Washington records good air quality, elevated on the south shore bluff with excellent ventilation above the Mon and Ohio river valleys below. The hilltop position rises above the worst of the valley inversions that can trap emissions in Pittsburgh's river corridors during winter anticyclonic periods.
Today - 30 June | Pollution peaks at 09:00
AQI:
Fair
38.8/100
PM2.5 (fine particles):
Good
7.2/100
PM10 (coarse particles):
Good
3.6/100
NO2 (nitrogen dioxide):
Good
5.9/100
O3 (ozone):
Fair
38.8/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.1/100
PM1 (ultrafine particles):
Good
5.4/100
Levels show the poorest local air quality during the day
Tomorrow - 1 July | Pollution peaks at 13:00
AQI:
Fair
31.0/100
PM2.5 (fine particles):
Good
6.4/100
PM10 (coarse particles):
Good
2.6/100
NO2 (nitrogen dioxide):
Good
4.5/100
O3 (ozone):
Fair
31.0/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Good
4.5/100
Other Landmarks in Pittsburgh
Frequently Asked Questions
Is air quality bad in Mount Washington right now?
On 30 June 2026, overall air quality in Mount Washington is fair. AQI is the main air quality indicator at 38.8/100. Pollution peaks around 9:00 AM (O3: 38.8/100).
Will air quality be worse tomorrow in Mount Washington?
On 1 July 2026, air quality conditions in Mount Washington will be similar to today, with AQI forecast at fair at 31.0/100. Pollution peaks around 1:00 PM (O3: 31.0/100).
Are air quality levels in Mount Washington based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 1 July 2026 at 01:04 CET (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team