Stay updated with real-time air quality in Franklin, 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)
38
Good
Franklin, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.96 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.33 μg/m³
0
55
155
255
425
605+
21.14 ppb
0
55
71
86
201
201+
0.75 ppb
0
36
76
186
605
1005+
5.13 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Franklin, Indiana
Franklin, Indiana
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AQI 33
Good
5.70μg/m³
PM2.5
18.23μg/m³
PM10
18.45ppb
O3
0.68ppb
SO2
5.06ppb
NO2
0.24ppm
CO
AQI 33
Good
5.82μg/m³
PM2.5
20.32μg/m³
PM10
21.46ppb
O3
0.75ppb
SO2
5.11ppb
NO2
0.24ppm
CO
AQI 27
Good
5.25μg/m³
PM2.5
21.14μg/m³
PM10
18.39ppb
O3
1.04ppb
SO2
5.27ppb
NO2
0.24ppm
CO
AQI 33
Good
6.06μg/m³
PM2.5
22.29μg/m³
PM10
20.34ppb
O3
0.75ppb
SO2
5.31ppb
NO2
0.23ppm
CO
AQI 33
Good
6.11μg/m³
PM2.5
23.81μg/m³
PM10
20.82ppb
O3
0.67ppb
SO2
4.86ppb
NO2
0.24ppm
CO
AQI 33
Good
5.61μg/m³
PM2.5
24.03μg/m³
PM10
20.57ppb
O3
0.75ppb
SO2
5.17ppb
NO2
0.24ppm
CO
Air quality and pollutant data for Indiana, 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 Franklin, Indiana is updated every hour for accuracy.
In the past 24 hours, the air quality in Franklin, Indiana was at its worst at 03:00:00 on 2026-09-07.
In the last 24 hours, the best air quality in Franklin, Indiana was observed at 06:00:00 on 2026-09-06.
As of now, the AQI in Franklin, Indiana is 38, indicating Good conditions.
Franklin, Indiana air has the highest levels of PM2.5.
Poor air quality in Franklin, Indiana means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Franklin, Indiana are currently 6.96 μg/m3.
The PM10 concentration in Franklin, Indiana is 19.332 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Franklin, Indiana is 0.241 ppm.
Currently, Franklin, Indiana has a sulfur dioxide (SO2) concentration of 0.753 ppb.
The current ozone (O3) level in Franklin, Indiana at the moment is 21.139 ppm.
Nitrogen dioxide (NO2) level in Franklin, Indiana at the moment is 5.13 ppb.
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