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)
48
Good
Plymouth, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.23 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.94 μg/m³
0
55
155
255
425
605+
52.49 ppb
0
55
71
86
201
201+
1.42 ppb
0
36
76
186
605
1005+
10.24 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Plymouth, Indiana
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AQI 44
Good
7.99μg/m³
PM2.5
35.33μg/m³
PM10
47.25ppb
O3
1.55ppb
SO2
1.26ppb
NO2
0.21ppm
CO
AQI 44
Good
8.08μg/m³
PM2.5
35.75μg/m³
PM10
47.61ppb
O3
1.52ppb
SO2
3.03ppb
NO2
0.21ppm
CO
AQI 45
Good
7.53μg/m³
PM2.5
34.93μg/m³
PM10
48.73ppb
O3
0.64ppb
SO2
6.84ppb
NO2
0.24ppm
CO
AQI 62
Moderate
14.94μg/m³
PM2.5
56.69μg/m³
PM10
54.08ppb
O3
1.86ppb
SO2
3.44ppb
NO2
0.20ppm
CO
AQI 44
Good
8.11μg/m³
PM2.5
36.07μg/m³
PM10
47.16ppb
O3
1.40ppb
SO2
7.70ppb
NO2
0.25ppm
CO
AQI 44
Good
8.28μg/m³
PM2.5
36.54μg/m³
PM10
48.43ppb
O3
0.68ppb
SO2
7.72ppb
NO2
0.25ppm
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 04:00:00 on 2026-10-22.
In the last 24 hrs, the best air quality in Plymouth, Indiana was observed at 08:00:00 on 2026-10-22.
The current air quality in Plymouth, Indiana is 48, 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 7.228 μg/m3.
The current PM10 concentration at Plymouth, Indiana is 28.936 μg/m3.
The current carbon monoxide (CO) concentration at Plymouth, Indiana is 0.253 ppm.
The current sulfur dioxide (SO2) concentration at Plymouth, Indiana is 1.423 ppb.
The current ozone (O3) concentration at Plymouth, Indiana is 52.489 ppm.
The current nitrogen dioxide (NO2) concentration at Plymouth, Indiana is 10.24 ppb.
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