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)
33
Good
Franklin, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.93 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.91 μg/m³
0
55
155
255
425
605+
23.43 ppb
0
55
71
86
201
201+
0.25 ppb
0
36
76
186
605
1005+
9.36 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Franklin, Indiana
Scroll To Air Quality MapLoading...
AQI 33
Good
5.75μg/m³
PM2.5
20.48μg/m³
PM10
23.41ppb
O3
0.24ppb
SO2
6.26ppb
NO2
0.23ppm
CO
AQI 33
Good
5.78μg/m³
PM2.5
25.16μg/m³
PM10
23.27ppb
O3
0.22ppb
SO2
5.26ppb
NO2
0.23ppm
CO
AQI 33
Good
5.94μg/m³
PM2.5
25.21μg/m³
PM10
23.39ppb
O3
0.60ppb
SO2
7.78ppb
NO2
0.22ppm
CO
AQI 33
Good
5.68μg/m³
PM2.5
19.79μg/m³
PM10
23.40ppb
O3
0.17ppb
SO2
3.36ppb
NO2
0.22ppm
CO
AQI 33
Good
5.55μg/m³
PM2.5
23.91μg/m³
PM10
24.27ppb
O3
0.45ppb
SO2
7.30ppb
NO2
0.23ppm
CO
AQI 33
Good
6.08μg/m³
PM2.5
25.54μg/m³
PM10
23.44ppb
O3
0.67ppb
SO2
9.34ppb
NO2
0.23ppm
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 01:00:00 on 2026-03-10.
In the last 24 hours, the best air quality in Franklin, Indiana was observed at 11:00:00 on 2026-03-10.
As of now, the AQI in Franklin, Indiana is 33, 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 5.926 μg/m3.
The PM10 concentration in Franklin, Indiana is 20.908 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Franklin, Indiana is 0.178 ppm.
Currently, Franklin, Indiana has a sulfur dioxide (SO2) concentration of 0.251 ppb.
The current ozone (O3) level in Franklin, Indiana at the moment is 23.431 ppm.
Nitrogen dioxide (NO2) level in Franklin, Indiana at the moment is 9.359 ppb.
All Rights Reserved © Ambee Inc. 2025