Stay updated with real-time air quality in Danville, 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)
36
Good
Danville, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.38 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.46 μg/m³
0
55
155
255
425
605+
39.06 ppb
0
55
71
86
201
201+
0.64 ppb
0
36
76
186
605
1005+
3.41 ppb
0
54
101
361
1250
2050+
0.31 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Danville, California
Danville, California
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AQI 42
Good
3.31μg/m³
PM2.5
15.30μg/m³
PM10
44.94ppb
O3
0.50ppb
SO2
2.22ppb
NO2
0.28ppm
CO
AQI 44
Good
4.82μg/m³
PM2.5
27.13μg/m³
PM10
46.77ppb
O3
0.50ppb
SO2
3.37ppb
NO2
0.36ppm
CO
AQI 44
Good
4.28μg/m³
PM2.5
26.02μg/m³
PM10
47.47ppb
O3
0.53ppb
SO2
2.40ppb
NO2
0.34ppm
CO
AQI 44
Good
2.62μg/m³
PM2.5
11.43μg/m³
PM10
47.24ppb
O3
0.52ppb
SO2
1.44ppb
NO2
0.24ppm
CO
AQI 35
Good
3.86μg/m³
PM2.5
17.18μg/m³
PM10
37.97ppb
O3
0.42ppb
SO2
3.70ppb
NO2
0.40ppm
CO
AQI 39
Good
3.36μg/m³
PM2.5
14.72μg/m³
PM10
42.14ppb
O3
0.47ppb
SO2
2.71ppb
NO2
0.34ppm
CO
Air quality measurements for California, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Danville, California is updated on an hourly basis.
The worst air quality in Danville, California was recorded at 09:00:00 on 2026-06-12.
The best air quality in Danville, California was recorded at 12:00:00 on 2026-06-12.
The real-time air quality index in Danville, California is 44, currently categorized as Good.
The most common pollutant in Danville, California is O3.
If the air quality in Danville, California is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Danville, California at present are 4.797 μg/m3.
The current PM10 levels in Danville, California are 27.097 μg/m3.
The current carbon monoxide (CO) level in Danville, California is 0.354 ppm.
The current sulfur dioxide (SO2) levels in Danville, California are 0.506 ppb.
The current ozone (O3) levels at Danville, California is 47.835 ppm.
The current nitrogen dioxide (NO2) levels at Danville, California is 3.067 ppb.
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