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

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.67 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.36 μg/m³
0
55
155
255
425
605+
41.16 ppb
0
55
71
86
201
201+
0.43 ppb
0
36
76
186
605
1005+
1.94 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Concord, California
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AQI 39
Good
6.76μg/m³
PM2.5
29.89μg/m³
PM10
41.99ppb
O3
0.41ppb
SO2
1.99ppb
NO2
0.21ppm
CO
AQI 38
Good
7.07μg/m³
PM2.5
31.29μg/m³
PM10
40.73ppb
O3
0.42ppb
SO2
2.28ppb
NO2
0.22ppm
CO
AQI 38
Good
6.81μg/m³
PM2.5
29.72μg/m³
PM10
38.91ppb
O3
0.47ppb
SO2
2.29ppb
NO2
0.25ppm
CO
AQI 38
Good
7.03μg/m³
PM2.5
30.94μg/m³
PM10
40.27ppb
O3
0.46ppb
SO2
2.41ppb
NO2
0.23ppm
CO
AQI 29
Good
5.43μg/m³
PM2.5
24.39μg/m³
PM10
30.52ppb
O3
0.56ppb
SO2
2.03ppb
NO2
0.33ppm
CO
AQI 44
Good
8.07μg/m³
PM2.5
35.96μg/m³
PM10
34.91ppb
O3
0.47ppb
SO2
3.46ppb
NO2
0.26ppm
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 Concord, California are available every hour.
Concord, California experienced its worst air quality at 10:00:00, 2026-03-09.
The best air quality in Concord, California was observed at 12:00:00 on 2026-03-09.
The air quality in Concord, California right now is Good, with an AQI of 38.
In Concord, California, O3 is the most frequently found pollutant.
When air quality in Concord, California is compromised, staying indoors and wearing a mask can reduce health risks.
Concord, California currently has a PM2.5 concentration of 6.665 μg/m3.
Concord, California currently has a PM10 concentration of 29.364 μg/m3.
The current carbon monoxide (CO) level in Concord, California is 0.216 ppm.
The current sulfur dioxide (SO2) concentration in Concord, California is 0.426 ppb.
Concord, California currently has an ozone (O3) concentration of 41.158 ppm.
The current level of nitrogen dioxide (NO2) in Concord, California is 1.936 ppb.
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