Stay updated with real-time air quality in Upper St. Clair, Pennsylvania featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
33
Good
Upper St. Clair, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.20 μg/m³
0
55
155
255
425
605+
33.07 ppb
0
55
71
86
201
201+
2.01 ppb
0
36
76
186
605
1005+
3.75 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Upper St. Clair, Pennsylvania
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AQI 33
Good
5.90μg/m³
PM2.5
26.80μg/m³
PM10
32.44ppb
O3
2.04ppb
SO2
3.76ppb
NO2
0.20ppm
CO
AQI 33
Good
6.14μg/m³
PM2.5
28.20μg/m³
PM10
33.77ppb
O3
1.98ppb
SO2
3.77ppb
NO2
0.20ppm
CO
AQI 38
Good
6.52μg/m³
PM2.5
28.71μg/m³
PM10
29.73ppb
O3
1.84ppb
SO2
4.00ppb
NO2
0.20ppm
CO
AQI 37
Good
5.82μg/m³
PM2.5
25.61μg/m³
PM10
39.65ppb
O3
1.80ppb
SO2
3.77ppb
NO2
0.20ppm
CO
AQI 33
Good
5.87μg/m³
PM2.5
25.87μg/m³
PM10
33.00ppb
O3
2.11ppb
SO2
3.73ppb
NO2
0.20ppm
CO
AQI 33
Good
6.12μg/m³
PM2.5
27.11μg/m³
PM10
30.57ppb
O3
2.09ppb
SO2
3.90ppb
NO2
0.19ppm
CO
Air quality and pollutant data for Pennsylvania, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Upper St. Clair, Pennsylvania is updated every hour for accuracy.
In the past 24 hours, the air quality in Upper St. Clair, Pennsylvania was at its worst at 10:00:00 on 2026-03-10.
In the last 24 hours, the best air quality in Upper St. Clair, Pennsylvania was observed at 06:00:00 on 2026-03-10.
As of now, the AQI in Upper St. Clair, Pennsylvania is 33, indicating Good conditions.
Upper St. Clair, Pennsylvania air has the highest levels of PM2.5.
Poor air quality in Upper St. Clair, Pennsylvania means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Upper St. Clair, Pennsylvania are currently 5.952 μg/m3.
The PM10 concentration in Upper St. Clair, Pennsylvania is 28.198 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Upper St. Clair, Pennsylvania is 0.198 ppm.
Currently, Upper St. Clair, Pennsylvania has a sulfur dioxide (SO2) concentration of 2.01 ppb.
The current ozone (O3) level in Upper St. Clair, Pennsylvania at the moment is 33.074 ppm.
Nitrogen dioxide (NO2) level in Upper St. Clair, Pennsylvania at the moment is 3.752 ppb.
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