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

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.87 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
34.21 μg/m³
0
55
155
255
425
605+
39.44 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
2.12 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Danville, California
Danville, California
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AQI 44
Good
7.70μg/m³
PM2.5
33.90μg/m³
PM10
38.88ppb
O3
0.32ppb
SO2
1.66ppb
NO2
0.28ppm
CO
AQI 38
Good
7.00μg/m³
PM2.5
30.36μg/m³
PM10
39.32ppb
O3
0.39ppb
SO2
2.65ppb
NO2
0.23ppm
CO
AQI 44
Good
8.49μg/m³
PM2.5
25.91μg/m³
PM10
40.83ppb
O3
0.30ppb
SO2
1.78ppb
NO2
0.27ppm
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 49
Good
8.54μg/m³
PM2.5
37.95μg/m³
PM10
39.72ppb
O3
0.42ppb
SO2
2.98ppb
NO2
0.31ppm
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
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 10:00:00 on 2026-04-24.
The best air quality in Danville, California was recorded at 11:00:00 on 2026-04-25.
The real-time air quality index in Danville, California is 44, currently categorized as Good.
The most common pollutant in Danville, California is PM2.5.
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 7.866 μg/m3.
The current PM10 levels in Danville, California are 34.213 μg/m3.
The current carbon monoxide (CO) level in Danville, California is 0.26 ppm.
The current sulfur dioxide (SO2) levels in Danville, California are 0.401 ppb.
The current ozone (O3) levels at Danville, California is 39.44 ppm.
The current nitrogen dioxide (NO2) levels at Danville, California is 2.122 ppb.
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