Stay updated with real-time air quality in Altoona, 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)
26
Good
Altoona, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.50 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.00 μg/m³
0
55
155
255
425
605+
28.03 ppb
0
55
71
86
201
201+
0.46 ppb
0
36
76
186
605
1005+
7.70 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Altoona, Pennsylvania
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AQI 26
Good
3.50μg/m³
PM2.5
15.98μg/m³
PM10
28.26ppb
O3
0.47ppb
SO2
7.63ppb
NO2
0.30ppm
CO
AQI 31
Good
3.50μg/m³
PM2.5
14.51μg/m³
PM10
34.26ppb
O3
0.48ppb
SO2
7.28ppb
NO2
0.30ppm
CO
AQI 29
Good
3.60μg/m³
PM2.5
16.00μg/m³
PM10
31.02ppb
O3
0.79ppb
SO2
7.21ppb
NO2
0.30ppm
CO
AQI 32
Good
3.75μg/m³
PM2.5
16.63μg/m³
PM10
34.84ppb
O3
0.48ppb
SO2
5.86ppb
NO2
0.30ppm
CO
AQI 32
Good
3.78μg/m³
PM2.5
16.80μg/m³
PM10
34.93ppb
O3
0.47ppb
SO2
5.73ppb
NO2
0.30ppm
CO
AQI 32
Good
3.78μg/m³
PM2.5
16.80μg/m³
PM10
34.93ppb
O3
0.47ppb
SO2
5.73ppb
NO2
0.30ppm
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 Altoona, Pennsylvania is updated every hour for accuracy.
In the past 24 hours, the air quality in Altoona, Pennsylvania was at its worst at 04:00:00 on 2026-01-22.
In the last 24 hours, the best air quality in Altoona, Pennsylvania was observed at 07:00:00 on 2026-01-23.
As of now, the AQI in Altoona, Pennsylvania is 26, indicating Good conditions.
Altoona, Pennsylvania air has the highest levels of O3.
Poor air quality in Altoona, Pennsylvania means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Altoona, Pennsylvania are currently 3.5 μg/m3.
The PM10 concentration in Altoona, Pennsylvania is 15.997 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Altoona, Pennsylvania is 0.298 ppm.
Currently, Altoona, Pennsylvania has a sulfur dioxide (SO2) concentration of 0.464 ppb.
The current ozone (O3) level in Altoona, Pennsylvania at the moment is 28.03 ppm.
Nitrogen dioxide (NO2) level in Altoona, Pennsylvania at the moment is 7.701 ppb.
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