Stay updated with real-time air quality in South 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)
36
Good
South Pasadena, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.11 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
5.93 μg/m³
0
55
155
255
425
605+
38.94 ppb
0
55
71
86
201
201+
0.21 ppb
0
36
76
186
605
1005+
3.42 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
South Pasadena, California
South Pasadena, California
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AQI 36
Good
2.11μg/m³
PM2.5
6.27μg/m³
PM10
38.97ppb
O3
0.21ppb
SO2
3.28ppb
NO2
0.20ppm
CO
AQI 36
Good
2.16μg/m³
PM2.5
5.72μg/m³
PM10
38.97ppb
O3
0.21ppb
SO2
3.57ppb
NO2
0.20ppm
CO
AQI 36
Good
2.17μg/m³
PM2.5
5.80μg/m³
PM10
38.99ppb
O3
0.22ppb
SO2
3.55ppb
NO2
0.20ppm
CO
AQI 36
Good
2.15μg/m³
PM2.5
6.47μg/m³
PM10
38.98ppb
O3
0.21ppb
SO2
3.26ppb
NO2
0.20ppm
CO
AQI 36
Good
2.09μg/m³
PM2.5
7.21μg/m³
PM10
39.05ppb
O3
0.21ppb
SO2
2.88ppb
NO2
0.20ppm
CO
AQI 36
Good
2.17μg/m³
PM2.5
6.39μg/m³
PM10
38.98ppb
O3
0.21ppb
SO2
3.31ppb
NO2
0.20ppm
CO
Air quality measurements for California, 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 South Pasadena, California is updated on an hourly basis.
The worst air quality in South Pasadena, California was recorded at 09:00:00 on 2026-10-22.
The best air quality in South Pasadena, California was recorded at 03:00:00 on 2026-10-22.
The real-time air quality index in South Pasadena, California is 36, currently categorized as Good.
The most common pollutant in South Pasadena, California is O3.
If the air quality in South Pasadena, California is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in South Pasadena, California at present are 2.112 μg/m3.
The current PM10 levels in South Pasadena, California are 5.931 μg/m3.
The current carbon monoxide (CO) level in South Pasadena, California is 0.2 ppm.
The current sulfur dioxide (SO2) levels in South Pasadena, California are 0.21 ppb.
The current ozone (O3) levels at South Pasadena, California is 38.94 ppm.
The current nitrogen dioxide (NO2) levels at South Pasadena, California is 3.423 ppb.
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