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)
84
Moderate
Pasadena, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.90 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
37.03 μg/m³
0
55
155
255
425
605+
65.25 ppb
0
55
71
86
201
201+
1.12 ppb
0
36
76
186
605
1005+
7.01 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Pasadena, California
Pasadena, California
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AQI 74
Moderate
15.15μg/m³
PM2.5
68.97μg/m³
PM10
62.49ppb
O3
0.98ppb
SO2
9.72ppb
NO2
0.24ppm
CO
AQI 80
Moderate
15.20μg/m³
PM2.5
70.49μg/m³
PM10
64.20ppb
O3
0.97ppb
SO2
9.89ppb
NO2
0.24ppm
CO
AQI 74
Moderate
15.50μg/m³
PM2.5
71.15μg/m³
PM10
62.45ppb
O3
0.96ppb
SO2
9.86ppb
NO2
0.24ppm
CO
AQI 77
Moderate
15.59μg/m³
PM2.5
71.36μg/m³
PM10
62.57ppb
O3
0.95ppb
SO2
9.86ppb
NO2
0.24ppm
CO
AQI 77
Moderate
15.52μg/m³
PM2.5
71.20μg/m³
PM10
63.02ppb
O3
0.95ppb
SO2
9.87ppb
NO2
0.24ppm
CO
AQI 64
Moderate
15.07μg/m³
PM2.5
65.69μg/m³
PM10
59.35ppb
O3
0.99ppb
SO2
9.15ppb
NO2
0.23ppm
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 09:00:00 on 2026-07-23.
In the last 24 hours, the best air quality in Pasadena, California was observed at 02:00:00 on 2026-07-23.
As of now, the AQI in Pasadena, California is 84, indicating Moderate conditions.
Pasadena, California air has the highest levels of O3.
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 10.903 μg/m3.
The PM10 concentration in Pasadena, California is 37.027 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Pasadena, California is 0.221 ppm.
Currently, Pasadena, California has a sulfur dioxide (SO2) concentration of 1.117 ppb.
The current ozone (O3) level in Pasadena, California at the moment is 65.252 ppm.
Nitrogen dioxide (NO2) level in Pasadena, California at the moment is 7.012 ppb.
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