Stay updated with real-time air quality in Hermosa Beach, 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)
31
Good
Hermosa Beach, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.90 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.25 μg/m³
0
55
155
255
425
605+
32.97 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
14.00 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hermosa Beach, California
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AQI 31
Good
3.90μg/m³
PM2.5
18.25μg/m³
PM10
32.97ppb
O3
0.40ppb
SO2
14.00ppb
NO2
0.28ppm
CO
AQI 31
Good
3.90μg/m³
PM2.5
18.25μg/m³
PM10
32.97ppb
O3
0.40ppb
SO2
14.00ppb
NO2
0.28ppm
CO
AQI 31
Good
3.90μg/m³
PM2.5
18.25μg/m³
PM10
32.97ppb
O3
0.40ppb
SO2
14.00ppb
NO2
0.28ppm
CO
AQI 29
Good
3.84μg/m³
PM2.5
19.23μg/m³
PM10
30.63ppb
O3
0.50ppb
SO2
10.11ppb
NO2
0.29ppm
CO
AQI 31
Good
3.79μg/m³
PM2.5
14.97μg/m³
PM10
32.53ppb
O3
0.27ppb
SO2
7.99ppb
NO2
0.28ppm
CO
AQI 49
Good
8.96μg/m³
PM2.5
22.62μg/m³
PM10
27.62ppb
O3
0.24ppb
SO2
8.37ppb
NO2
0.27ppm
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 Hermosa Beach, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Hermosa Beach, California was at its worst at 03:00:00 on 2026-03-09.
In the last 24 hours, the best air quality in Hermosa Beach, California was observed at 01:00:00 on 2026-03-09.
As of now, the AQI in Hermosa Beach, California is 31, indicating Good conditions.
Hermosa Beach, California air has the highest levels of O3.
Poor air quality in Hermosa Beach, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Hermosa Beach, California are currently 3.903 μg/m3.
The PM10 concentration in Hermosa Beach, California is 18.254 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Hermosa Beach, California is 0.281 ppm.
Currently, Hermosa Beach, California has a sulfur dioxide (SO2) concentration of 0.399 ppb.
The current ozone (O3) level in Hermosa Beach, California at the moment is 32.966 ppm.
Nitrogen dioxide (NO2) level in Hermosa Beach, California at the moment is 14.003 ppb.
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