Stay updated with real-time air quality in Plymouth, 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)
32
Good
Plymouth, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.72 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.05 μg/m³
0
55
155
255
425
605+
34.88 ppb
0
55
71
86
201
201+
0.48 ppb
0
36
76
186
605
1005+
9.87 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Plymouth, Indiana
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AQI 33
Good
3.15μg/m³
PM2.5
14.38μg/m³
PM10
36.13ppb
O3
0.48ppb
SO2
3.37ppb
NO2
0.15ppm
CO
AQI 33
Good
3.22μg/m³
PM2.5
15.27μg/m³
PM10
36.41ppb
O3
0.51ppb
SO2
3.35ppb
NO2
0.16ppm
CO
AQI 31
Good
3.32μg/m³
PM2.5
16.09μg/m³
PM10
34.14ppb
O3
0.45ppb
SO2
10.37ppb
NO2
0.23ppm
CO
AQI 32
Good
3.48μg/m³
PM2.5
17.98μg/m³
PM10
35.05ppb
O3
0.63ppb
SO2
9.94ppb
NO2
0.15ppm
CO
AQI 33
Good
3.40μg/m³
PM2.5
15.14μg/m³
PM10
35.52ppb
O3
0.61ppb
SO2
3.47ppb
NO2
0.21ppm
CO
AQI 32
Good
3.34μg/m³
PM2.5
17.02μg/m³
PM10
35.09ppb
O3
0.61ppb
SO2
3.85ppb
NO2
0.21ppm
CO
Air quality data and pollutant measurements for Indiana, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Plymouth, Indiana is updated every hour.
The worst air quality in Plymouth, Indiana in the last 24 hours was observed at 09:00:00 on 2026-01-22.
In the last 24 hrs, the best air quality in Plymouth, Indiana was observed at 05:00:00 on 2026-01-22.
The current air quality in Plymouth, Indiana is 32, categorized as Good based on real-time data.
The most common pollutant in Plymouth, Indiana is O3.
If the air quality in Plymouth, Indiana is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Plymouth, Indiana is 4.718 μg/m3.
The current PM10 concentration at Plymouth, Indiana is 18.046 μg/m3.
The current carbon monoxide (CO) concentration at Plymouth, Indiana is 0.193 ppm.
The current sulfur dioxide (SO2) concentration at Plymouth, Indiana is 0.481 ppb.
The current ozone (O3) concentration at Plymouth, Indiana is 34.879 ppm.
The current nitrogen dioxide (NO2) concentration at Plymouth, Indiana is 9.874 ppb.
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