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)
69
Moderate
West Lafayette, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
18.69 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
82.38 μg/m³
0
55
155
255
425
605+
12.86 ppb
0
55
71
86
201
201+
0.63 ppb
0
36
76
186
605
1005+
10.14 ppb
0
54
101
361
1250
2050+
0.19 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 69
Moderate
18.70μg/m³
PM2.5
82.73μg/m³
PM10
12.76ppb
O3
0.63ppb
SO2
10.15ppb
NO2
0.19ppm
CO
AQI 67
Moderate
18.03μg/m³
PM2.5
83.35μg/m³
PM10
17.11ppb
O3
0.55ppb
SO2
9.91ppb
NO2
0.23ppm
CO
AQI 66
Moderate
17.39μg/m³
PM2.5
66.70μg/m³
PM10
12.67ppb
O3
0.60ppb
SO2
8.52ppb
NO2
0.19ppm
CO
AQI 75
Moderate
21.61μg/m³
PM2.5
92.74μg/m³
PM10
13.88ppb
O3
0.49ppb
SO2
8.32ppb
NO2
0.24ppm
CO
AQI 73
Moderate
21.36μg/m³
PM2.5
88.39μg/m³
PM10
17.47ppb
O3
0.59ppb
SO2
10.81ppb
NO2
0.23ppm
CO
AQI 64
Moderate
16.48μg/m³
PM2.5
73.14μg/m³
PM10
14.03ppb
O3
0.52ppb
SO2
9.97ppb
NO2
0.26ppm
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 10:00:00 on 2025-12-07.
The best air quality in West Lafayette, Indiana was recorded at 10:00:00 on 2025-12-06.
The real-time air quality index in West Lafayette, Indiana is 69, currently categorized as Moderate.
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 18.691 μg/m3.
The current PM10 levels in West Lafayette, Indiana are 82.376 μg/m3.
The current carbon monoxide (CO) level in West Lafayette, Indiana is 0.192 ppm.
The current sulfur dioxide (SO2) levels in West Lafayette, Indiana are 0.63 ppb.
The current ozone (O3) levels at West Lafayette, Indiana is 12.861 ppm.
The current nitrogen dioxide (NO2) levels at West Lafayette, Indiana is 10.136 ppb.
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