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)
31
Good
Danville, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.68 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.19 μg/m³
0
55
155
255
425
605+
32.69 ppb
0
55
71
86
201
201+
0.72 ppb
0
36
76
186
605
1005+
2.47 ppb
0
54
101
361
1250
2050+
0.33 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
3.34μg/m³
PM2.5
13.91μg/m³
PM10
44.53ppb
O3
0.61ppb
SO2
2.15ppb
NO2
0.26ppm
CO
AQI 35
Good
4.40μg/m³
PM2.5
14.76μg/m³
PM10
38.16ppb
O3
0.64ppb
SO2
3.44ppb
NO2
0.32ppm
CO
AQI 38
Good
4.37μg/m³
PM2.5
19.92μg/m³
PM10
41.06ppb
O3
0.69ppb
SO2
3.35ppb
NO2
0.31ppm
CO
AQI 44
Good
3.12μg/m³
PM2.5
12.68μg/m³
PM10
47.67ppb
O3
0.64ppb
SO2
1.58ppb
NO2
0.23ppm
CO
AQI 34
Good
3.30μg/m³
PM2.5
14.11μg/m³
PM10
37.03ppb
O3
0.48ppb
SO2
3.96ppb
NO2
0.35ppm
CO
AQI 38
Good
3.35μg/m³
PM2.5
14.12μg/m³
PM10
41.24ppb
O3
0.56ppb
SO2
2.94ppb
NO2
0.31ppm
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 08:00:00 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 36, 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 4.384 μg/m3.
The current PM10 levels in Danville, California are 14.463 μg/m3.
The current carbon monoxide (CO) level in Danville, California is 0.313 ppm.
The current sulfur dioxide (SO2) levels in Danville, California are 0.639 ppb.
The current ozone (O3) levels at Danville, California is 39.065 ppm.
The current nitrogen dioxide (NO2) levels at Danville, California is 3.406 ppb.
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