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)
38
Good
Greenfield City, California
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.13 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.09 μg/m³
0
55
155
255
425
605+
5.11 ppb
0
55
71
86
201
201+
0.46 ppb
0
36
76
186
605
1005+
8.55 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Greenfield City, California
Greenfield City, California
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AQI 27
Good
5.18μg/m³
PM2.5
22.57μg/m³
PM10
4.32ppb
O3
0.51ppb
SO2
8.78ppb
NO2
0.35ppm
CO
AQI 49
Good
8.54μg/m³
PM2.5
33.99μg/m³
PM10
4.59ppb
O3
0.54ppb
SO2
7.62ppb
NO2
0.42ppm
CO
AQI 27
Good
4.66μg/m³
PM2.5
20.50μg/m³
PM10
4.42ppb
O3
0.54ppb
SO2
8.80ppb
NO2
0.35ppm
CO
AQI 11
Good
2.27μg/m³
PM2.5
10.43μg/m³
PM10
4.00ppb
O3
0.53ppb
SO2
8.86ppb
NO2
0.36ppm
CO
AQI 22
Good
4.30μg/m³
PM2.5
19.63μg/m³
PM10
3.78ppb
O3
0.54ppb
SO2
8.52ppb
NO2
0.38ppm
CO
AQI 16
Good
2.52μg/m³
PM2.5
11.24μg/m³
PM10
3.94ppb
O3
0.52ppb
SO2
8.81ppb
NO2
0.36ppm
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 03:00:00 on 2025-12-13.
In the last 24 hours, the best air quality in Greenfield City, California was observed at 02:00:00 on 2025-12-13.
As of now, the AQI in Greenfield City, California is 38, indicating Good 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 7.127 μg/m3.
The PM10 concentration in Greenfield City, California is 21.091 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Greenfield City, California is 0.342 ppm.
Currently, Greenfield City, California has a sulfur dioxide (SO2) concentration of 0.455 ppb.
The current ozone (O3) level in Greenfield City, California at the moment is 5.114 ppm.
Nitrogen dioxide (NO2) level in Greenfield City, California at the moment is 8.553 ppb.
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