Stay updated with real-time air quality in State College, 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)
30
Good
State College, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.81 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.16 μg/m³
0
55
155
255
425
605+
32.30 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
3.29 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
State College, Pennsylvania
State College, Pennsylvania
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AQI 28
Good
2.70μg/m³
PM2.5
11.08μg/m³
PM10
30.42ppb
O3
0.31ppb
SO2
3.69ppb
NO2
0.13ppm
CO
AQI 29
Good
2.70μg/m³
PM2.5
11.16μg/m³
PM10
30.83ppb
O3
0.32ppb
SO2
3.69ppb
NO2
0.13ppm
CO
AQI 32
Good
2.72μg/m³
PM2.5
12.00μg/m³
PM10
34.92ppb
O3
0.32ppb
SO2
3.67ppb
NO2
0.13ppm
CO
AQI 33
Good
2.40μg/m³
PM2.5
10.03μg/m³
PM10
35.99ppb
O3
0.47ppb
SO2
3.54ppb
NO2
0.11ppm
CO
AQI 33
Good
2.46μg/m³
PM2.5
10.30μg/m³
PM10
36.12ppb
O3
0.49ppb
SO2
3.54ppb
NO2
0.12ppm
CO
AQI 33
Good
3.05μg/m³
PM2.5
12.35μg/m³
PM10
35.83ppb
O3
0.23ppb
SO2
5.92ppb
NO2
0.14ppm
CO
Air quality measurements for Pennsylvania, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for State College, Pennsylvania is updated on an hourly basis.
The worst air quality in State College, Pennsylvania was recorded at 07:00:00 on 2026-10-22.
The best air quality in State College, Pennsylvania was recorded at 05:00:00 on 2026-10-22.
The real-time air quality index in State College, Pennsylvania is 30, currently categorized as Good.
The most common pollutant in State College, Pennsylvania is O3.
If the air quality in State College, Pennsylvania is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in State College, Pennsylvania at present are 2.806 μg/m3.
The current PM10 levels in State College, Pennsylvania are 12.165 μg/m3.
The current carbon monoxide (CO) level in State College, Pennsylvania is 0.131 ppm.
The current sulfur dioxide (SO2) levels in State College, Pennsylvania are 0.316 ppb.
The current ozone (O3) levels at State College, Pennsylvania is 32.297 ppm.
The current nitrogen dioxide (NO2) levels at State College, Pennsylvania is 3.292 ppb.
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