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)
56
Moderate
Altoona, Pennsylvania
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
12.13 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.34 μg/m³
0
55
155
255
425
605+
15.83 ppb
0
55
71
86
201
201+
0.45 ppb
0
36
76
186
605
1005+
3.04 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Altoona, Pennsylvania
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AQI 66
Moderate
16.71μg/m³
PM2.5
74.31μg/m³
PM10
41.62ppb
O3
6.20ppb
SO2
3.27ppb
NO2
0.21ppm
CO
AQI 52
Moderate
9.78μg/m³
PM2.5
44.50μg/m³
PM10
41.12ppb
O3
0.38ppb
SO2
2.55ppb
NO2
0.27ppm
CO
AQI 77
Moderate
6.97μg/m³
PM2.5
38.30μg/m³
PM10
63.04ppb
O3
1.04ppb
SO2
2.85ppb
NO2
0.19ppm
CO
AQI 52
Moderate
9.79μg/m³
PM2.5
44.06μg/m³
PM10
39.35ppb
O3
0.22ppb
SO2
2.52ppb
NO2
0.27ppm
CO
AQI 52
Moderate
9.80μg/m³
PM2.5
44.03μg/m³
PM10
39.18ppb
O3
0.20ppb
SO2
2.52ppb
NO2
0.27ppm
CO
AQI 52
Moderate
9.80μg/m³
PM2.5
44.03μg/m³
PM10
39.18ppb
O3
0.20ppb
SO2
2.52ppb
NO2
0.27ppm
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 02:00:00 on 2025-07-29.
In the last 24 hours, the best air quality in Altoona, Pennsylvania was observed at 02:00:00 on 2025-07-29.
As of now, the AQI in Altoona, Pennsylvania is 54, indicating Moderate conditions.
Altoona, Pennsylvania air has the highest levels of PM2.5.
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 11.419 μg/m3.
The PM10 concentration in Altoona, Pennsylvania is 47.297 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Altoona, Pennsylvania is 0.228 ppm.
Currently, Altoona, Pennsylvania has a sulfur dioxide (SO2) concentration of 3.214 ppb.
The current ozone (O3) level in Altoona, Pennsylvania at the moment is 32.784 ppm.
Nitrogen dioxide (NO2) level in Altoona, Pennsylvania at the moment is 3.906 ppb.
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