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

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.10 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.29 μg/m³
0
55
155
255
425
605+
32.69 ppb
0
55
71
86
201
201+
0.47 ppb
0
36
76
186
605
1005+
12.73 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Lafayette, Colorado
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AQI 36
Good
3.84μg/m³
PM2.5
17.25μg/m³
PM10
39.12ppb
O3
0.67ppb
SO2
15.16ppb
NO2
0.25ppm
CO
AQI 27
Good
5.41μg/m³
PM2.5
26.28μg/m³
PM10
22.18ppb
O3
0.67ppb
SO2
16.86ppb
NO2
0.25ppm
CO
AQI 40
Good
3.61μg/m³
PM2.5
16.41μg/m³
PM10
43.23ppb
O3
0.67ppb
SO2
15.14ppb
NO2
0.26ppm
CO
AQI 27
Good
5.24μg/m³
PM2.5
20.50μg/m³
PM10
22.17ppb
O3
0.68ppb
SO2
20.79ppb
NO2
0.26ppm
CO
AQI 30
Good
4.32μg/m³
PM2.5
19.40μg/m³
PM10
31.73ppb
O3
0.67ppb
SO2
14.54ppb
NO2
0.24ppm
CO
AQI 34
Good
5.38μg/m³
PM2.5
36.65μg/m³
PM10
22.65ppb
O3
0.69ppb
SO2
19.79ppb
NO2
0.26ppm
CO
The air quality data for Colorado, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Lafayette, Colorado are available every hour.
Lafayette, Colorado experienced its worst air quality at 12:00:00, 2025-10-22.
The best air quality in Lafayette, Colorado was observed at 03:00:00 on 2025-10-22.
The air quality in Lafayette, Colorado right now is Good, with an AQI of 31.
In Lafayette, Colorado, O3 is the most frequently found pollutant.
When air quality in Lafayette, Colorado is compromised, staying indoors and wearing a mask can reduce health risks.
Lafayette, Colorado currently has a PM2.5 concentration of 4.097 μg/m3.
Lafayette, Colorado currently has a PM10 concentration of 19.293 μg/m3.
The current carbon monoxide (CO) level in Lafayette, Colorado is 0.254 ppm.
The current sulfur dioxide (SO2) concentration in Lafayette, Colorado is 0.475 ppb.
Lafayette, Colorado currently has an ozone (O3) concentration of 32.685 ppm.
The current level of nitrogen dioxide (NO2) in Lafayette, Colorado is 12.732 ppb.
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