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)
22
Good
Valparaiso, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.58 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.65 μg/m³
0
55
155
255
425
605+
21.00 ppb
0
55
71
86
201
201+
0.61 ppb
0
36
76
186
605
1005+
13.97 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Valparaiso, Indiana
Valparaiso, Indiana
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AQI 27
Good
4.91μg/m³
PM2.5
22.29μg/m³
PM10
20.94ppb
O3
0.61ppb
SO2
11.26ppb
NO2
0.22ppm
CO
AQI 22
Good
4.11μg/m³
PM2.5
18.46μg/m³
PM10
22.28ppb
O3
0.61ppb
SO2
12.07ppb
NO2
0.22ppm
CO
AQI 22
Good
3.89μg/m³
PM2.5
18.23μg/m³
PM10
20.50ppb
O3
0.60ppb
SO2
13.49ppb
NO2
0.22ppm
CO
AQI 22
Good
3.55μg/m³
PM2.5
17.06μg/m³
PM10
19.82ppb
O3
0.60ppb
SO2
14.13ppb
NO2
0.22ppm
CO
AQI 21
Good
3.31μg/m³
PM2.5
11.75μg/m³
PM10
22.55ppb
O3
0.70ppb
SO2
20.26ppb
NO2
0.21ppm
CO
AQI 22
Good
3.54μg/m³
PM2.5
12.01μg/m³
PM10
22.37ppb
O3
0.72ppb
SO2
20.20ppb
NO2
0.22ppm
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 04:00:00 on 2026-10-05.
In the last 24 hrs, the best air quality in Valparaiso, Indiana was observed at 02:00:00 on 2026-10-06.
The current air quality in Valparaiso, Indiana is 22, categorized as Good based on real-time data.
The most common pollutant in Valparaiso, Indiana is PM2.5.
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 3.583 μg/m3.
The current PM10 concentration at Valparaiso, Indiana is 15.647 μg/m3.
The current carbon monoxide (CO) concentration at Valparaiso, Indiana is 0.22 ppm.
The current sulfur dioxide (SO2) concentration at Valparaiso, Indiana is 0.609 ppb.
The current ozone (O3) concentration at Valparaiso, Indiana is 21.004 ppm.
The current nitrogen dioxide (NO2) concentration at Valparaiso, Indiana is 13.971 ppb.
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