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)
31
Good
Valparaiso, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.53 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.94 μg/m³
0
55
155
255
425
605+
34.00 ppb
0
55
71
86
201
201+
0.48 ppb
0
36
76
186
605
1005+
4.31 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Valparaiso, Indiana
Valparaiso, Indiana
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AQI 31
Good
4.78μg/m³
PM2.5
21.20μg/m³
PM10
33.14ppb
O3
0.42ppb
SO2
2.40ppb
NO2
0.19ppm
CO
AQI 31
Good
4.84μg/m³
PM2.5
21.57μg/m³
PM10
33.52ppb
O3
0.41ppb
SO2
2.56ppb
NO2
0.19ppm
CO
AQI 29
Good
4.24μg/m³
PM2.5
18.58μg/m³
PM10
30.88ppb
O3
0.42ppb
SO2
2.39ppb
NO2
0.19ppm
CO
AQI 28
Good
3.85μg/m³
PM2.5
16.68μg/m³
PM10
30.01ppb
O3
0.42ppb
SO2
2.33ppb
NO2
0.19ppm
CO
AQI 27
Good
4.68μg/m³
PM2.5
18.10μg/m³
PM10
28.06ppb
O3
0.43ppb
SO2
2.57ppb
NO2
0.19ppm
CO
AQI 28
Good
4.87μg/m³
PM2.5
22.41μg/m³
PM10
30.32ppb
O3
0.42ppb
SO2
2.64ppb
NO2
0.19ppm
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 10:00:00 on 2026-06-07.
In the last 24 hrs, the best air quality in Valparaiso, Indiana was observed at 10:00:00 on 2026-06-08.
The current air quality in Valparaiso, Indiana is 31, 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 4.525 μg/m3.
The current PM10 concentration at Valparaiso, Indiana is 18.937 μg/m3.
The current carbon monoxide (CO) concentration at Valparaiso, Indiana is 0.184 ppm.
The current sulfur dioxide (SO2) concentration at Valparaiso, Indiana is 0.481 ppb.
The current ozone (O3) concentration at Valparaiso, Indiana is 34.002 ppm.
The current nitrogen dioxide (NO2) concentration at Valparaiso, Indiana is 4.314 ppb.
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