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)
49
Good
Danville, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.20 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
36.91 μg/m³
0
55
155
255
425
605+
25.58 ppb
0
55
71
86
201
201+
0.39 ppb
0
36
76
186
605
1005+
6.90 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Danville, California
Danville, California
Scroll To Air Quality MapLoading...
AQI 52
Moderate
9.55μg/m³
PM2.5
33.46μg/m³
PM10
26.91ppb
O3
0.35ppb
SO2
5.10ppb
NO2
0.18ppm
CO
AQI 44
Good
8.15μg/m³
PM2.5
34.87μg/m³
PM10
24.48ppb
O3
0.42ppb
SO2
8.87ppb
NO2
0.28ppm
CO
AQI 49
Good
9.15μg/m³
PM2.5
27.91μg/m³
PM10
24.85ppb
O3
0.42ppb
SO2
5.25ppb
NO2
0.24ppm
CO
AQI 52
Moderate
10.14μg/m³
PM2.5
32.11μg/m³
PM10
28.03ppb
O3
0.31ppb
SO2
3.98ppb
NO2
0.13ppm
CO
AQI 58
Moderate
12.81μg/m³
PM2.5
54.09μg/m³
PM10
24.58ppb
O3
0.26ppb
SO2
7.61ppb
NO2
0.27ppm
CO
AQI 54
Moderate
11.35μg/m³
PM2.5
43.77μg/m³
PM10
25.54ppb
O3
0.32ppb
SO2
5.95ppb
NO2
0.21ppm
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 07:00:00 on 2026-05-21.
The best air quality in Danville, California was recorded at 03:00:00 on 2026-05-21.
The real-time air quality index in Danville, California is 49, 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 9.197 μg/m3.
The current PM10 levels in Danville, California are 36.909 μg/m3.
The current carbon monoxide (CO) level in Danville, California is 0.242 ppm.
The current sulfur dioxide (SO2) levels in Danville, California are 0.385 ppb.
The current ozone (O3) levels at Danville, California is 25.584 ppm.
The current nitrogen dioxide (NO2) levels at Danville, California is 6.904 ppb.
All Rights Reserved © Ambee Inc. 2025