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

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.03 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.14 μg/m³
0
55
155
255
425
605+
31.13 ppb
0
55
71
86
201
201+
0.95 ppb
0
36
76
186
605
1005+
6.42 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Greenfield, Indiana
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AQI 44
Good
8.09μg/m³
PM2.5
30.06μg/m³
PM10
22.84ppb
O3
0.94ppb
SO2
5.87ppb
NO2
0.28ppm
CO
AQI 44
Good
7.91μg/m³
PM2.5
28.64μg/m³
PM10
24.12ppb
O3
0.94ppb
SO2
5.61ppb
NO2
0.29ppm
CO
AQI 44
Good
8.23μg/m³
PM2.5
30.61μg/m³
PM10
24.66ppb
O3
0.93ppb
SO2
5.57ppb
NO2
0.29ppm
CO
AQI 44
Good
8.28μg/m³
PM2.5
31.05μg/m³
PM10
21.55ppb
O3
0.94ppb
SO2
5.85ppb
NO2
0.28ppm
CO
AQI 49
Good
9.05μg/m³
PM2.5
36.98μg/m³
PM10
28.76ppb
O3
0.94ppb
SO2
7.24ppb
NO2
0.24ppm
CO
AQI 44
Good
8.42μg/m³
PM2.5
33.19μg/m³
PM10
25.02ppb
O3
0.93ppb
SO2
5.82ppb
NO2
0.29ppm
CO
The air quality data for Indiana, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Greenfield, Indiana are available every hour.
Greenfield, Indiana experienced its worst air quality at 05:00:00, 2026-06-07.
The best air quality in Greenfield, Indiana was observed at 08:00:00 on 2026-06-08.
The air quality in Greenfield, Indiana right now is Good, with an AQI of 49.
In Greenfield, Indiana, PM2.5 is the most frequently found pollutant.
When air quality in Greenfield, Indiana is compromised, staying indoors and wearing a mask can reduce health risks.
Greenfield, Indiana currently has a PM2.5 concentration of 9.034 μg/m3.
Greenfield, Indiana currently has a PM10 concentration of 18.138 μg/m3.
The current carbon monoxide (CO) level in Greenfield, Indiana is 0.253 ppm.
The current sulfur dioxide (SO2) concentration in Greenfield, Indiana is 0.954 ppb.
Greenfield, Indiana currently has an ozone (O3) concentration of 31.129 ppm.
The current level of nitrogen dioxide (NO2) in Greenfield, Indiana is 6.42 ppb.
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