Stay updated with real-time air quality in Ukiah, 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)
66
Moderate
Ukiah, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
16.80 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
74.98 μg/m³
0
55
155
255
425
605+
12.00 ppb
0
55
71
86
201
201+
0.48 ppb
0
36
76
186
605
1005+
5.88 ppb
0
54
101
361
1250
2050+
0.38 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Ukiah, California
Ukiah, California
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AQI 22
Good
3.52μg/m³
PM2.5
16.00μg/m³
PM10
18.14ppb
O3
0.16ppb
SO2
3.07ppb
NO2
0.14ppm
CO
AQI 25
Good
4.34μg/m³
PM2.5
27.03μg/m³
PM10
15.96ppb
O3
0.42ppb
SO2
3.42ppb
NO2
0.38ppm
CO
AQI 25
Good
4.18μg/m³
PM2.5
26.75μg/m³
PM10
8.35ppb
O3
0.42ppb
SO2
3.41ppb
NO2
0.38ppm
CO
AQI 22
Good
4.06μg/m³
PM2.5
18.07μg/m³
PM10
10.92ppb
O3
0.42ppb
SO2
3.42ppb
NO2
0.38ppm
CO
AQI 37
Good
5.58μg/m³
PM2.5
40.02μg/m³
PM10
8.68ppb
O3
0.42ppb
SO2
3.51ppb
NO2
0.38ppm
CO
AQI 27
Good
4.93μg/m³
PM2.5
22.31μg/m³
PM10
23.16ppb
O3
0.42ppb
SO2
3.66ppb
NO2
0.37ppm
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 Ukiah, California is updated every hour.
The worst air quality in Ukiah, California in the last 24 hours was observed at 10:00:00 on 2025-10-24.
In the last 24 hrs, the best air quality in Ukiah, California was observed at 11:00:00 on 2025-10-23.
The current air quality in Ukiah, California is 49, categorized as Good based on real-time data.
The most common pollutant in Ukiah, California is PM2.5.
If the air quality in Ukiah, California is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Ukiah, California is 8.903 μg/m3.
The current PM10 concentration at Ukiah, California is 39.013 μg/m3.
The current carbon monoxide (CO) concentration at Ukiah, California is 0.379 ppm.
The current sulfur dioxide (SO2) concentration at Ukiah, California is 0.413 ppb.
The current ozone (O3) concentration at Ukiah, California is 11.003 ppm.
The current nitrogen dioxide (NO2) concentration at Ukiah, California is 3.506 ppb.
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