Stay updated with real-time air quality in Pasadena, California 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
Pasadena, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
5.68 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.65 μg/m³
0
55
155
255
425
605+
29.26 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
4.68 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Pasadena, California
Pasadena, California
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AQI 33
Good
5.75μg/m³
PM2.5
21.19μg/m³
PM10
28.37ppb
O3
0.19ppb
SO2
4.77ppb
NO2
0.20ppm
CO
AQI 27
Good
5.22μg/m³
PM2.5
20.25μg/m³
PM10
28.31ppb
O3
0.20ppb
SO2
4.55ppb
NO2
0.20ppm
CO
AQI 33
Good
5.63μg/m³
PM2.5
21.66μg/m³
PM10
28.61ppb
O3
0.20ppb
SO2
4.67ppb
NO2
0.20ppm
CO
AQI 33
Good
5.75μg/m³
PM2.5
21.92μg/m³
PM10
28.79ppb
O3
0.20ppb
SO2
4.73ppb
NO2
0.20ppm
CO
AQI 33
Good
5.61μg/m³
PM2.5
21.94μg/m³
PM10
29.29ppb
O3
0.20ppb
SO2
4.73ppb
NO2
0.20ppm
CO
AQI 44
Good
8.30μg/m³
PM2.5
34.91μg/m³
PM10
31.52ppb
O3
0.19ppb
SO2
5.06ppb
NO2
0.19ppm
CO
Air quality and pollutant data for California, 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 Pasadena, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Pasadena, California was at its worst at 10:00:00 on 2025-06-06.
In the last 24 hours, the best air quality in Pasadena, California was observed at 11:00:00 on 2025-06-06.
As of now, the AQI in Pasadena, California is 33, indicating Good conditions.
Pasadena, California air has the highest levels of PM2.5.
Poor air quality in Pasadena, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Pasadena, California are currently 5.681 μg/m3.
The PM10 concentration in Pasadena, California is 22.652 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Pasadena, California is 0.196 ppm.
Currently, Pasadena, California has a sulfur dioxide (SO2) concentration of 0.196 ppb.
The current ozone (O3) level in Pasadena, California at the moment is 29.261 ppm.
Nitrogen dioxide (NO2) level in Pasadena, California at the moment is 4.679 ppb.
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