Stay updated with real-time air quality in Antioch, 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)
44
Good
Antioch, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.14 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.70 μg/m³
0
55
155
255
425
605+
36.70 ppb
0
55
71
86
201
201+
1.02 ppb
0
36
76
186
605
1005+
5.76 ppb
0
54
101
361
1250
2050+
0.36 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Antioch, California
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AQI 33
Good
6.46μg/m³
PM2.5
21.54μg/m³
PM10
28.68ppb
O3
0.57ppb
SO2
3.43ppb
NO2
0.31ppm
CO
AQI 54
Moderate
10.52μg/m³
PM2.5
47.94μg/m³
PM10
27.48ppb
O3
1.41ppb
SO2
1.83ppb
NO2
0.48ppm
CO
AQI 52
Moderate
10.06μg/m³
PM2.5
45.52μg/m³
PM10
27.75ppb
O3
1.31ppb
SO2
2.46ppb
NO2
0.46ppm
CO
AQI 44
Good
7.96μg/m³
PM2.5
34.74μg/m³
PM10
36.40ppb
O3
0.43ppb
SO2
3.85ppb
NO2
0.23ppm
CO
AQI 44
Good
7.68μg/m³
PM2.5
33.40μg/m³
PM10
35.31ppb
O3
0.43ppb
SO2
3.51ppb
NO2
0.25ppm
CO
AQI 54
Moderate
11.38μg/m³
PM2.5
47.50μg/m³
PM10
25.68ppb
O3
0.90ppb
SO2
5.94ppb
NO2
0.39ppm
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 Antioch, California are available every hour.
Antioch, California experienced its worst air quality at 09:00:00, 2026-03-09.
The best air quality in Antioch, California was observed at 06:00:00 on 2026-03-09.
The air quality in Antioch, California right now is Good, with an AQI of 44.
In Antioch, California, PM2.5 is the most frequently found pollutant.
When air quality in Antioch, California is compromised, staying indoors and wearing a mask can reduce health risks.
Antioch, California currently has a PM2.5 concentration of 8.142 μg/m3.
Antioch, California currently has a PM10 concentration of 23.702 μg/m3.
The current carbon monoxide (CO) level in Antioch, California is 0.358 ppm.
The current sulfur dioxide (SO2) concentration in Antioch, California is 1.016 ppb.
Antioch, California currently has an ozone (O3) concentration of 36.697 ppm.
The current level of nitrogen dioxide (NO2) in Antioch, California is 5.759 ppb.
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