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)
38
Good
Plymouth, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.83 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.71 μg/m³
0
55
155
255
425
605+
11.82 ppb
0
55
71
86
201
201+
0.79 ppb
0
36
76
186
605
1005+
4.65 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Plymouth, Indiana
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AQI 27
Good
5.36μg/m³
PM2.5
23.23μg/m³
PM10
15.63ppb
O3
1.46ppb
SO2
2.82ppb
NO2
0.24ppm
CO
AQI 33
Good
6.08μg/m³
PM2.5
25.36μg/m³
PM10
14.62ppb
O3
1.44ppb
SO2
3.11ppb
NO2
0.25ppm
CO
AQI 44
Good
7.57μg/m³
PM2.5
22.60μg/m³
PM10
14.66ppb
O3
1.46ppb
SO2
4.44ppb
NO2
0.28ppm
CO
AQI 33
Good
5.54μg/m³
PM2.5
29.76μg/m³
PM10
10.28ppb
O3
1.52ppb
SO2
5.19ppb
NO2
0.23ppm
CO
AQI 49
Good
9.46μg/m³
PM2.5
42.10μg/m³
PM10
5.53ppb
O3
1.39ppb
SO2
4.36ppb
NO2
0.32ppm
CO
AQI 49
Good
9.10μg/m³
PM2.5
40.90μg/m³
PM10
10.07ppb
O3
1.38ppb
SO2
4.36ppb
NO2
0.33ppm
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 03:00:00 on 2026-09-07.
In the last 24 hrs, the best air quality in Plymouth, Indiana was observed at 02:00:00 on 2026-09-07.
The current air quality in Plymouth, Indiana is 38, categorized as Good based on real-time data.
The most common pollutant in Plymouth, Indiana is PM2.5.
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 6.827 μg/m3.
The current PM10 concentration at Plymouth, Indiana is 21.706 μg/m3.
The current carbon monoxide (CO) concentration at Plymouth, Indiana is 0.269 ppm.
The current sulfur dioxide (SO2) concentration at Plymouth, Indiana is 0.79 ppb.
The current ozone (O3) concentration at Plymouth, Indiana is 11.822 ppm.
The current nitrogen dioxide (NO2) concentration at Plymouth, Indiana is 4.653 ppb.
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