Stay updated with real-time air quality in Greenfield City, 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
Greenfield City, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
16.67 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
49.02 μg/m³
0
55
155
255
425
605+
12.01 ppb
0
55
71
86
201
201+
0.43 ppb
0
36
76
186
605
1005+
12.95 ppb
0
54
101
361
1250
2050+
0.40 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Greenfield City, California
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AQI 66
Moderate
16.53μg/m³
PM2.5
43.62μg/m³
PM10
12.91ppb
O3
0.30ppb
SO2
16.35ppb
NO2
0.40ppm
CO
AQI 60
Moderate
14.30μg/m³
PM2.5
34.16μg/m³
PM10
18.04ppb
O3
0.30ppb
SO2
12.38ppb
NO2
0.41ppm
CO
AQI 64
Moderate
15.95μg/m³
PM2.5
37.42μg/m³
PM10
16.53ppb
O3
0.30ppb
SO2
16.82ppb
NO2
0.40ppm
CO
AQI 75
Moderate
22.11μg/m³
PM2.5
46.60μg/m³
PM10
17.03ppb
O3
0.30ppb
SO2
22.96ppb
NO2
0.40ppm
CO
AQI 64
Moderate
16.44μg/m³
PM2.5
39.38μg/m³
PM10
19.24ppb
O3
0.30ppb
SO2
17.20ppb
NO2
0.39ppm
CO
AQI 71
Moderate
19.73μg/m³
PM2.5
45.45μg/m³
PM10
17.08ppb
O3
0.30ppb
SO2
21.04ppb
NO2
0.40ppm
CO
Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Greenfield City, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Greenfield City, California was at its worst at 11:00:00 on 2026-03-14.
In the last 24 hours, the best air quality in Greenfield City, California was observed at 03:00:00 on 2026-03-14.
As of now, the AQI in Greenfield City, California is 66, indicating Moderate conditions.
Greenfield City, California air has the highest levels of PM2.5.
Poor air quality in Greenfield City, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Greenfield City, California are currently 16.666 μg/m3.
The PM10 concentration in Greenfield City, California is 49.017 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Greenfield City, California is 0.396 ppm.
Currently, Greenfield City, California has a sulfur dioxide (SO2) concentration of 0.432 ppb.
The current ozone (O3) level in Greenfield City, California at the moment is 12.009 ppm.
Nitrogen dioxide (NO2) level in Greenfield City, California at the moment is 12.946 ppb.
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