Stay updated with real-time air quality in Petaluma, 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)
17
Good
Petaluma, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.87 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.70 μg/m³
0
55
155
255
425
605+
17.89 ppb
0
55
71
86
201
201+
0.48 ppb
0
36
76
186
605
1005+
2.84 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Petaluma, California
Petaluma, California
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AQI 22
Good
3.78μg/m³
PM2.5
18.54μg/m³
PM10
18.07ppb
O3
0.48ppb
SO2
2.85ppb
NO2
0.12ppm
CO
AQI 17
Good
3.40μg/m³
PM2.5
17.75μg/m³
PM10
18.00ppb
O3
0.48ppb
SO2
2.88ppb
NO2
0.13ppm
CO
AQI 17
Good
2.36μg/m³
PM2.5
10.57μg/m³
PM10
18.09ppb
O3
0.48ppb
SO2
2.43ppb
NO2
0.12ppm
CO
AQI 27
Good
4.58μg/m³
PM2.5
23.47μg/m³
PM10
17.82ppb
O3
0.48ppb
SO2
2.85ppb
NO2
0.12ppm
CO
AQI 27
Good
4.82μg/m³
PM2.5
22.24μg/m³
PM10
18.05ppb
O3
0.49ppb
SO2
2.47ppb
NO2
0.13ppm
CO
AQI 27
Good
4.83μg/m³
PM2.5
22.36μg/m³
PM10
18.00ppb
O3
0.49ppb
SO2
2.43ppb
NO2
0.13ppm
CO
Air quality data and pollutant measurements for California, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Petaluma, California is updated every hour.
The worst air quality in Petaluma, California in the last 24 hours was observed at 10:00:00 on 2026-07-10.
In the last 24 hrs, the best air quality in Petaluma, California was observed at 11:00:00 on 2026-07-11.
The current air quality in Petaluma, California is 17, categorized as Good based on real-time data.
The most common pollutant in Petaluma, California is O3.
If the air quality in Petaluma, California is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Petaluma, California is 2.873 μg/m3.
The current PM10 concentration at Petaluma, California is 10.697 μg/m3.
The current carbon monoxide (CO) concentration at Petaluma, California is 0.123 ppm.
The current sulfur dioxide (SO2) concentration at Petaluma, California is 0.483 ppb.
The current ozone (O3) concentration at Petaluma, California is 17.893 ppm.
The current nitrogen dioxide (NO2) concentration at Petaluma, California is 2.838 ppb.
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