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)
44
Good
Concord, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.02 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.58 μg/m³
0
55
155
255
425
605+
37.94 ppb
0
55
71
86
201
201+
0.23 ppb
0
36
76
186
605
1005+
1.30 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Concord, California
Concord, California
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AQI 44
Good
8.19μg/m³
PM2.5
36.47μg/m³
PM10
38.01ppb
O3
0.22ppb
SO2
1.34ppb
NO2
0.30ppm
CO
AQI 44
Good
8.16μg/m³
PM2.5
36.34μg/m³
PM10
38.26ppb
O3
0.23ppb
SO2
1.47ppb
NO2
0.30ppm
CO
AQI 38
Good
7.49μg/m³
PM2.5
32.64μg/m³
PM10
37.70ppb
O3
0.29ppb
SO2
1.42ppb
NO2
0.28ppm
CO
AQI 44
Good
7.77μg/m³
PM2.5
34.25μg/m³
PM10
38.10ppb
O3
0.26ppb
SO2
1.48ppb
NO2
0.29ppm
CO
AQI 34
Good
6.02μg/m³
PM2.5
26.45μg/m³
PM10
37.32ppb
O3
0.36ppb
SO2
1.42ppb
NO2
0.29ppm
CO
AQI 44
Good
7.95μg/m³
PM2.5
35.29μg/m³
PM10
39.04ppb
O3
0.32ppb
SO2
2.00ppb
NO2
0.30ppm
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 05:00:00, 2026-04-25.
The best air quality in Concord, California was observed at 10:00:00 on 2026-04-25.
The air quality in Concord, California right now is Good, with an AQI of 44.
In Concord, California, PM2.5 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 8.024 μg/m3.
Concord, California currently has a PM10 concentration of 35.575 μg/m3.
The current carbon monoxide (CO) level in Concord, California is 0.296 ppm.
The current sulfur dioxide (SO2) concentration in Concord, California is 0.235 ppb.
Concord, California currently has an ozone (O3) concentration of 37.939 ppm.
The current level of nitrogen dioxide (NO2) in Concord, California is 1.299 ppb.
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