Real-time air quality index in Portage, Indiana today
Stay updated with real-time air quality in Portage, 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)
56
Moderate
Portage, Indiana
Last updated: ... (Local time)
Common air pollutants in Portage, Indiana
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
12.39 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
56.21 μg/m³
0
55
155
255
425
605+
Ozone (O3)
15.99 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.71 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
12.30 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Portage, Indiana
Portage, Indiana
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Portage, Indiana air quality map: Real-time AQI near you
Air quality in nearby cities
Lake Station, Indiana
AQI 67
Moderate
17.52μg/m³
PM2.5
78.30μg/m³
PM10
13.25ppb
O3
0.49ppb
SO2
11.51ppb
NO2
0.21ppm
CO
Hobart, Indiana
AQI 64
Moderate
16.18μg/m³
PM2.5
72.85μg/m³
PM10
14.77ppb
O3
0.53ppb
SO2
11.45ppb
NO2
0.21ppm
CO
Chesterton, Indiana
AQI 56
Moderate
12.14μg/m³
PM2.5
57.55μg/m³
PM10
20.73ppb
O3
0.66ppb
SO2
11.20ppb
NO2
0.21ppm
CO
Gary, Indiana
AQI 69
Moderate
19.05μg/m³
PM2.5
84.24μg/m³
PM10
10.52ppb
O3
0.46ppb
SO2
11.57ppb
NO2
0.21ppm
CO
Valparaiso, Indiana
AQI 66
Moderate
17.27μg/m³
PM2.5
86.40μg/m³
PM10
19.56ppb
O3
0.68ppb
SO2
11.22ppb
NO2
0.21ppm
CO
Merrillville, Indiana
AQI 56
Moderate
11.54μg/m³
PM2.5
47.45μg/m³
PM10
22.52ppb
O3
0.91ppb
SO2
11.25ppb
NO2
0.20ppm
CO
How accurate is Indiana, USA air quality data?
Air quality measurements for Indiana, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Frequently asked questions
How frequently is the air quality data for Portage, Indiana updated?
Air quality data for Portage, Indiana is updated on an hourly basis.
When did Portage, Indiana experience the worst air quality in the last 24 hours?
The worst air quality in Portage, Indiana was recorded at 09:00:00 on 2025-12-06.
When did Portage, Indiana have its best air quality in the last 24 hours?
The best air quality in Portage, Indiana was recorded at 08:00:00 on 2025-12-07.
What is the real-time air quality index for Portage, Indiana?
The real-time air quality index in Portage, Indiana is 56, currently categorized as Moderate.
Which pollutant is found most often in Portage, Indiana?
The most common pollutant in Portage, Indiana is PM2.5.
What can I do if the air quality in Portage, Indiana is poor?
If the air quality in Portage, Indiana is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Portage, Indiana?
The measured PM2.5 levels in Portage, Indiana at present are 12.395 μg/m3.
What are the current PM10 levels at Portage, Indiana?
The current PM10 levels in Portage, Indiana are 56.206 μg/m3.
What are the current carbon monoxide (CO) levels at Portage, Indiana?
The current carbon monoxide (CO) level in Portage, Indiana is 0.23 ppm.
What are the current sulfur dioxide (SO2) levels at Portage, Indiana?
The current sulfur dioxide (SO2) levels in Portage, Indiana are 0.708 ppb.
What are the current ozone (O3) levels at Portage, Indiana?
The current ozone (O3) levels at Portage, Indiana is 15.987 ppm.
What are the current nitrogen dioxide (NO2) levels at Portage, Indiana?
The current nitrogen dioxide (NO2) levels at Portage, Indiana is 12.297 ppb.
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