Stay updated with real-time air quality in Berkeley, 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)
27
Good
Berkeley, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.79 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.28 μg/m³
0
55
155
255
425
605+
19.48 ppb
0
55
71
86
201
201+
0.26 ppb
0
36
76
186
605
1005+
1.45 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Berkeley, California
Berkeley, California
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AQI 27
Good
4.56μg/m³
PM2.5
20.25μg/m³
PM10
19.31ppb
O3
0.27ppb
SO2
1.45ppb
NO2
0.22ppm
CO
AQI 33
Good
5.88μg/m³
PM2.5
26.19μg/m³
PM10
20.45ppb
O3
0.22ppb
SO2
1.48ppb
NO2
0.28ppm
CO
AQI 33
Good
5.75μg/m³
PM2.5
25.64μg/m³
PM10
20.56ppb
O3
0.24ppb
SO2
1.44ppb
NO2
0.28ppm
CO
AQI 33
Good
6.33μg/m³
PM2.5
28.25μg/m³
PM10
20.89ppb
O3
0.21ppb
SO2
1.49ppb
NO2
0.29ppm
CO
AQI 33
Good
6.48μg/m³
PM2.5
26.14μg/m³
PM10
18.76ppb
O3
0.31ppb
SO2
3.13ppb
NO2
0.27ppm
CO
AQI 22
Good
3.86μg/m³
PM2.5
17.25μg/m³
PM10
19.93ppb
O3
0.27ppb
SO2
1.60ppb
NO2
0.30ppm
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 Berkeley, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Berkeley, California was at its worst at 07:00:00 on 2026-07-28.
In the last 24 hours, the best air quality in Berkeley, California was observed at 01:00:00 on 2026-07-27.
As of now, the AQI in Berkeley, California is 27, indicating Good conditions.
Berkeley, California air has the highest levels of PM2.5.
Poor air quality in Berkeley, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Berkeley, California are currently 4.787 μg/m3.
The PM10 concentration in Berkeley, California is 21.283 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Berkeley, California is 0.231 ppm.
Currently, Berkeley, California has a sulfur dioxide (SO2) concentration of 0.259 ppb.
The current ozone (O3) level in Berkeley, California at the moment is 19.484 ppm.
Nitrogen dioxide (NO2) level in Berkeley, California at the moment is 1.452 ppb.
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