Stay updated with real-time air quality in Chesterton, 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)
19
Good
Chesterton, Indiana
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
2.11 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.45 μg/m³
0
55
155
255
425
605+
20.48 ppb
0
55
71
86
201
201+
0.48 ppb
0
36
76
186
605
1005+
3.17 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Chesterton, Indiana
Chesterton, Indiana
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AQI 20
Good
3.10μg/m³
PM2.5
13.97μg/m³
PM10
21.99ppb
O3
0.57ppb
SO2
3.46ppb
NO2
0.13ppm
CO
AQI 21
Good
3.45μg/m³
PM2.5
15.17μg/m³
PM10
23.00ppb
O3
0.56ppb
SO2
3.37ppb
NO2
0.13ppm
CO
AQI 20
Good
2.31μg/m³
PM2.5
9.12μg/m³
PM10
21.79ppb
O3
0.57ppb
SO2
3.04ppb
NO2
0.13ppm
CO
AQI 20
Good
0.46μg/m³
PM2.5
1.81μg/m³
PM10
21.60ppb
O3
0.50ppb
SO2
3.03ppb
NO2
0.13ppm
CO
AQI 21
Good
3.31μg/m³
PM2.5
14.47μg/m³
PM10
22.86ppb
O3
0.56ppb
SO2
3.31ppb
NO2
0.13ppm
CO
AQI 22
Good
3.61μg/m³
PM2.5
15.81μg/m³
PM10
24.31ppb
O3
0.54ppb
SO2
3.18ppb
NO2
0.13ppm
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 Chesterton, Indiana is updated every hour.
The worst air quality in Chesterton, Indiana in the last 24 hours was observed at 04:00:00 on 2025-10-21.
In the last 24 hrs, the best air quality in Chesterton, Indiana was observed at 01:00:00 on 2025-10-21.
The current air quality in Chesterton, Indiana is 19, categorized as Good based on real-time data.
The most common pollutant in Chesterton, Indiana is O3.
If the air quality in Chesterton, Indiana is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Chesterton, Indiana is 2.597 μg/m3.
The current PM10 concentration at Chesterton, Indiana is 11.168 μg/m3.
The current carbon monoxide (CO) concentration at Chesterton, Indiana is 0.219 ppm.
The current sulfur dioxide (SO2) concentration at Chesterton, Indiana is 0.768 ppb.
The current ozone (O3) concentration at Chesterton, Indiana is 21.111 ppm.
The current nitrogen dioxide (NO2) concentration at Chesterton, Indiana is 2.896 ppb.
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