Stay updated with real-time air quality in Pacifica, 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)
23
Good
Pacifica, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.60 μg/m³
0
55
155
255
425
605+
24.99 ppb
0
55
71
86
201
201+
0.33 ppb
0
36
76
186
605
1005+
1.82 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Pacifica, California
Pacifica, California
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AQI 27
Good
4.77μg/m³
PM2.5
21.41μg/m³
PM10
25.20ppb
O3
0.28ppb
SO2
1.58ppb
NO2
0.26ppm
CO
AQI 23
Good
4.07μg/m³
PM2.5
18.78μg/m³
PM10
25.01ppb
O3
0.33ppb
SO2
1.82ppb
NO2
0.25ppm
CO
AQI 23
Good
4.07μg/m³
PM2.5
18.78μg/m³
PM10
25.01ppb
O3
0.33ppb
SO2
1.82ppb
NO2
0.25ppm
CO
AQI 23
Good
4.29μg/m³
PM2.5
18.30μg/m³
PM10
24.88ppb
O3
0.34ppb
SO2
1.83ppb
NO2
0.25ppm
CO
AQI 22
Good
4.23μg/m³
PM2.5
17.32μg/m³
PM10
24.25ppb
O3
0.35ppb
SO2
1.82ppb
NO2
0.25ppm
CO
AQI 23
Good
4.29μg/m³
PM2.5
18.30μg/m³
PM10
24.88ppb
O3
0.34ppb
SO2
1.83ppb
NO2
0.25ppm
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 Pacifica, California are available every hour.
Pacifica, California experienced its worst air quality at 10:00:00, 2026-09-20.
The best air quality in Pacifica, California was observed at 08:00:00 on 2026-09-21.
The air quality in Pacifica, California right now is Good, with an AQI of 23.
In Pacifica, California, O3 is the most frequently found pollutant.
When air quality in Pacifica, California is compromised, staying indoors and wearing a mask can reduce health risks.
Pacifica, California currently has a PM2.5 concentration of 4.18 μg/m3.
Pacifica, California currently has a PM10 concentration of 18.603 μg/m3.
The current carbon monoxide (CO) level in Pacifica, California is 0.253 ppm.
The current sulfur dioxide (SO2) concentration in Pacifica, California is 0.332 ppb.
Pacifica, California currently has an ozone (O3) concentration of 24.994 ppm.
The current level of nitrogen dioxide (NO2) in Pacifica, California is 1.825 ppb.
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