Stay updated with real-time air quality in Santa Monica, 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)
38
Good
Santa Monica, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
6.78 μg/m³
0
55
155
255
425
605+
40.82 ppb
0
55
71
86
201
201+
0.31 ppb
0
36
76
186
605
1005+
8.08 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Santa Monica, California
Santa Monica, California
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AQI 37
Good
1.23μg/m³
PM2.5
6.50μg/m³
PM10
40.48ppb
O3
0.30ppb
SO2
6.80ppb
NO2
0.20ppm
CO
AQI 38
Good
1.14μg/m³
PM2.5
6.08μg/m³
PM10
40.66ppb
O3
0.30ppb
SO2
6.46ppb
NO2
0.20ppm
CO
AQI 37
Good
1.97μg/m³
PM2.5
10.33μg/m³
PM10
39.86ppb
O3
0.30ppb
SO2
5.70ppb
NO2
0.19ppm
CO
AQI 37
Good
1.65μg/m³
PM2.5
8.66μg/m³
PM10
39.91ppb
O3
0.30ppb
SO2
5.46ppb
NO2
0.18ppm
CO
AQI 37
Good
1.65μg/m³
PM2.5
8.66μg/m³
PM10
39.91ppb
O3
0.30ppb
SO2
5.46ppb
NO2
0.18ppm
CO
AQI 37
Good
0.96μg/m³
PM2.5
4.84μg/m³
PM10
40.32ppb
O3
0.30ppb
SO2
3.44ppb
NO2
0.20ppm
CO
The air quality data for California, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Santa Monica, California are available every hour.
Santa Monica, California experienced its worst air quality at 10:00:00, 2026-10-22.
The best air quality in Santa Monica, California was observed at 03:00:00 on 2026-10-22.
The air quality in Santa Monica, California right now is Good, with an AQI of 38.
In Santa Monica, California, O3 is the most frequently found pollutant.
When air quality in Santa Monica, California is compromised, staying indoors and wearing a mask can reduce health risks.
Santa Monica, California currently has a PM2.5 concentration of 1.245 μg/m3.
Santa Monica, California currently has a PM10 concentration of 6.775 μg/m3.
The current carbon monoxide (CO) level in Santa Monica, California is 0.204 ppm.
The current sulfur dioxide (SO2) concentration in Santa Monica, California is 0.306 ppb.
Santa Monica, California currently has an ozone (O3) concentration of 40.824 ppm.
The current level of nitrogen dioxide (NO2) in Santa Monica, California is 8.078 ppb.
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