Stay updated with real-time air quality in Brentwood, 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
Brentwood, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.93 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.50 μg/m³
0
55
155
255
425
605+
20.57 ppb
0
55
71
86
201
201+
0.80 ppb
0
36
76
186
605
1005+
3.27 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Brentwood, California
Brentwood, California
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AQI 38
Good
6.68μg/m³
PM2.5
38.40μg/m³
PM10
22.88ppb
O3
0.94ppb
SO2
2.04ppb
NO2
0.20ppm
CO
AQI 38
Good
6.88μg/m³
PM2.5
15.33μg/m³
PM10
20.98ppb
O3
0.69ppb
SO2
2.75ppb
NO2
0.21ppm
CO
AQI 49
Good
8.56μg/m³
PM2.5
37.34μg/m³
PM10
20.47ppb
O3
0.58ppb
SO2
3.04ppb
NO2
0.24ppm
CO
AQI 27
Good
4.80μg/m³
PM2.5
21.26μg/m³
PM10
19.98ppb
O3
0.46ppb
SO2
2.21ppb
NO2
0.26ppm
CO
AQI 33
Good
5.78μg/m³
PM2.5
27.02μg/m³
PM10
20.90ppb
O3
0.41ppb
SO2
1.39ppb
NO2
0.28ppm
CO
AQI 23
Good
3.11μg/m³
PM2.5
13.04μg/m³
PM10
24.93ppb
O3
0.55ppb
SO2
2.15ppb
NO2
0.21ppm
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 Brentwood, California is updated on an hourly basis.
The worst air quality in Brentwood, California was recorded at 08:00:00 on 2026-07-28.
The best air quality in Brentwood, California was recorded at 12:00:00 on 2026-07-27.
The real-time air quality index in Brentwood, California is 33, currently categorized as Good.
The most common pollutant in Brentwood, California is PM2.5.
If the air quality in Brentwood, California is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Brentwood, California at present are 6.196 μg/m3.
The current PM10 levels in Brentwood, California are 34.842 μg/m3.
The current carbon monoxide (CO) level in Brentwood, California is 0.203 ppm.
The current sulfur dioxide (SO2) levels in Brentwood, California are 0.874 ppb.
The current ozone (O3) levels at Brentwood, California is 22.827 ppm.
The current nitrogen dioxide (NO2) levels at Brentwood, California is 2.187 ppb.
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