Stay updated with real-time air quality in West Lafayette, 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
West Lafayette, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.60 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.30 μg/m³
0
55
155
255
425
605+
22.08 ppb
0
55
71
86
201
201+
0.76 ppb
0
36
76
186
605
1005+
3.81 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
West Lafayette, Indiana
West Lafayette, Indiana
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AQI 22
Good
3.54μg/m³
PM2.5
16.12μg/m³
PM10
22.09ppb
O3
0.75ppb
SO2
3.80ppb
NO2
0.26ppm
CO
AQI 27
Good
4.59μg/m³
PM2.5
23.96μg/m³
PM10
21.00ppb
O3
0.78ppb
SO2
4.38ppb
NO2
0.25ppm
CO
AQI 22
Good
3.87μg/m³
PM2.5
17.09μg/m³
PM10
21.49ppb
O3
0.60ppb
SO2
4.39ppb
NO2
0.26ppm
CO
AQI 27
Good
4.86μg/m³
PM2.5
20.03μg/m³
PM10
27.86ppb
O3
0.87ppb
SO2
4.47ppb
NO2
0.24ppm
CO
AQI 27
Good
4.73μg/m³
PM2.5
18.77μg/m³
PM10
26.43ppb
O3
1.15ppb
SO2
4.20ppb
NO2
0.24ppm
CO
AQI 27
Good
4.64μg/m³
PM2.5
23.05μg/m³
PM10
25.98ppb
O3
1.33ppb
SO2
4.20ppb
NO2
0.24ppm
CO
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
Air quality data for West Lafayette, Indiana is updated on an hourly basis.
The worst air quality in West Lafayette, Indiana was recorded at 05:00:00 on 2026-08-16.
The best air quality in West Lafayette, Indiana was recorded at 03:00:00 on 2026-08-17.
The real-time air quality index in West Lafayette, Indiana is 22, currently categorized as Good.
The most common pollutant in West Lafayette, Indiana is PM2.5.
If the air quality in West Lafayette, Indiana is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in West Lafayette, Indiana at present are 3.595 μg/m3.
The current PM10 levels in West Lafayette, Indiana are 16.296 μg/m3.
The current carbon monoxide (CO) level in West Lafayette, Indiana is 0.255 ppm.
The current sulfur dioxide (SO2) levels in West Lafayette, Indiana are 0.763 ppb.
The current ozone (O3) levels at West Lafayette, Indiana is 22.076 ppm.
The current nitrogen dioxide (NO2) levels at West Lafayette, Indiana is 3.812 ppb.
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