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)
49
Good
Brentwood, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.13 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
33.93 μg/m³
0
55
155
255
425
605+
34.46 ppb
0
55
71
86
201
201+
0.69 ppb
0
36
76
186
605
1005+
2.09 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Very high
Brentwood, California
Brentwood, California
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AQI 44
Good
7.50μg/m³
PM2.5
31.90μg/m³
PM10
29.94ppb
O3
0.25ppb
SO2
1.32ppb
NO2
0.22ppm
CO
AQI 38
Good
7.22μg/m³
PM2.5
24.68μg/m³
PM10
29.90ppb
O3
0.26ppb
SO2
1.47ppb
NO2
0.22ppm
CO
AQI 44
Good
7.64μg/m³
PM2.5
17.07μg/m³
PM10
37.62ppb
O3
0.23ppb
SO2
1.25ppb
NO2
0.23ppm
CO
AQI 38
Good
7.00μg/m³
PM2.5
25.93μg/m³
PM10
33.98ppb
O3
0.21ppb
SO2
1.70ppb
NO2
0.23ppm
CO
AQI 31
Good
5.36μg/m³
PM2.5
16.12μg/m³
PM10
33.57ppb
O3
0.21ppb
SO2
1.72ppb
NO2
0.23ppm
CO
AQI 44
Good
7.90μg/m³
PM2.5
20.28μg/m³
PM10
33.58ppb
O3
0.28ppb
SO2
1.11ppb
NO2
0.22ppm
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 03:00:00 on 2026-04-25.
The best air quality in Brentwood, California was recorded at 12:00:00 on 2026-04-25.
The real-time air quality index in Brentwood, California is 38, 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 7.34 μg/m3.
The current PM10 levels in Brentwood, California are 32.404 μg/m3.
The current carbon monoxide (CO) level in Brentwood, California is 0.221 ppm.
The current sulfur dioxide (SO2) levels in Brentwood, California are 0.25 ppb.
The current ozone (O3) levels at Brentwood, California is 29.783 ppm.
The current nitrogen dioxide (NO2) levels at Brentwood, California is 1.338 ppb.
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