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)
22
Good
Brentwood, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.36 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.33 μg/m³
0
55
155
255
425
605+
18.22 ppb
0
55
71
86
201
201+
0.39 ppb
0
36
76
186
605
1005+
3.40 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 17
Good
3.12μg/m³
PM2.5
16.88μg/m³
PM10
18.24ppb
O3
0.39ppb
SO2
3.24ppb
NO2
0.20ppm
CO
AQI 22
Good
4.20μg/m³
PM2.5
14.79μg/m³
PM10
18.53ppb
O3
0.37ppb
SO2
2.82ppb
NO2
0.20ppm
CO
AQI 18
Good
3.13μg/m³
PM2.5
12.38μg/m³
PM10
19.19ppb
O3
0.36ppb
SO2
2.69ppb
NO2
0.19ppm
CO
AQI 18
Good
2.99μg/m³
PM2.5
10.22μg/m³
PM10
18.64ppb
O3
0.35ppb
SO2
2.25ppb
NO2
0.17ppm
CO
AQI 18
Good
1.98μg/m³
PM2.5
8.94μg/m³
PM10
19.00ppb
O3
0.34ppb
SO2
1.96ppb
NO2
0.13ppm
CO
AQI 19
Good
2.86μg/m³
PM2.5
12.11μg/m³
PM10
20.00ppb
O3
0.35ppb
SO2
2.95ppb
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 Brentwood, California is updated on an hourly basis.
The worst air quality in Brentwood, California was recorded at 01:00:00 on 2026-08-16.
The best air quality in Brentwood, California was recorded at 03:00:00 on 2026-08-15.
The real-time air quality index in Brentwood, California is 22, 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 4.359 μg/m3.
The current PM10 levels in Brentwood, California are 19.334 μg/m3.
The current carbon monoxide (CO) level in Brentwood, California is 0.2 ppm.
The current sulfur dioxide (SO2) levels in Brentwood, California are 0.387 ppb.
The current ozone (O3) levels at Brentwood, California is 18.216 ppm.
The current nitrogen dioxide (NO2) levels at Brentwood, California is 3.398 ppb.
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