Stay updated with real-time air quality in Valparaiso, 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)
39
Good
Valparaiso, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.35 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.01 μg/m³
0
55
155
255
425
605+
41.52 ppb
0
55
71
86
201
201+
0.33 ppb
0
36
76
186
605
1005+
7.61 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Valparaiso, Indiana
Valparaiso, Indiana
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AQI 37
Good
1.58μg/m³
PM2.5
6.92μg/m³
PM10
39.59ppb
O3
0.38ppb
SO2
6.47ppb
NO2
0.17ppm
CO
AQI 36
Good
2.04μg/m³
PM2.5
9.80μg/m³
PM10
38.68ppb
O3
0.39ppb
SO2
6.64ppb
NO2
0.17ppm
CO
AQI 36
Good
1.96μg/m³
PM2.5
8.44μg/m³
PM10
38.55ppb
O3
0.37ppb
SO2
6.52ppb
NO2
0.17ppm
CO
AQI 35
Good
2.03μg/m³
PM2.5
8.62μg/m³
PM10
37.95ppb
O3
0.35ppb
SO2
6.49ppb
NO2
0.17ppm
CO
AQI 38
Good
3.08μg/m³
PM2.5
12.37μg/m³
PM10
40.99ppb
O3
0.43ppb
SO2
7.52ppb
NO2
0.17ppm
CO
AQI 38
Good
3.05μg/m³
PM2.5
11.22μg/m³
PM10
40.73ppb
O3
0.43ppb
SO2
7.52ppb
NO2
0.17ppm
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 Valparaiso, Indiana is updated every hour.
The worst air quality in Valparaiso, Indiana in the last 24 hours was observed at 07:00:00 on 2026-06-15.
In the last 24 hrs, the best air quality in Valparaiso, Indiana was observed at 10:00:00 on 2026-06-15.
The current air quality in Valparaiso, Indiana is 39, categorized as Good based on real-time data.
The most common pollutant in Valparaiso, Indiana is O3.
If the air quality in Valparaiso, Indiana is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Valparaiso, Indiana is 2.347 μg/m3.
The current PM10 concentration at Valparaiso, Indiana is 19.009 μg/m3.
The current carbon monoxide (CO) concentration at Valparaiso, Indiana is 0.144 ppm.
The current sulfur dioxide (SO2) concentration at Valparaiso, Indiana is 0.329 ppb.
The current ozone (O3) concentration at Valparaiso, Indiana is 41.524 ppm.
The current nitrogen dioxide (NO2) concentration at Valparaiso, Indiana is 7.609 ppb.
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