Stay updated with real-time air quality in Monument, 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)
28
Good
Monument, Colorado
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.11 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.95 μg/m³
0
55
155
255
425
605+
29.82 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
4.07 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Monument, Colorado
Monument, Colorado
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AQI 40
Good
7.24μg/m³
PM2.5
42.53μg/m³
PM10
29.80ppb
O3
0.53ppb
SO2
4.62ppb
NO2
0.17ppm
CO
AQI 38
Good
6.83μg/m³
PM2.5
38.72μg/m³
PM10
29.95ppb
O3
0.54ppb
SO2
4.48ppb
NO2
0.17ppm
CO
AQI 38
Good
7.39μg/m³
PM2.5
33.49μg/m³
PM10
32.77ppb
O3
0.54ppb
SO2
4.43ppb
NO2
0.17ppm
CO
AQI 29
Good
4.68μg/m³
PM2.5
20.10μg/m³
PM10
30.63ppb
O3
0.53ppb
SO2
6.38ppb
NO2
0.18ppm
CO
AQI 38
Good
7.29μg/m³
PM2.5
36.55μg/m³
PM10
32.41ppb
O3
0.54ppb
SO2
4.44ppb
NO2
0.17ppm
CO
AQI 38
Good
7.31μg/m³
PM2.5
36.80μg/m³
PM10
33.11ppb
O3
0.54ppb
SO2
4.44ppb
NO2
0.17ppm
CO
Air quality data and pollutant measurements for Colorado, 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 Monument, Colorado is updated every hour.
The worst air quality in Monument, Colorado in the last 24 hours was observed at 11:00:00 on 2026-09-06.
In the last 24 hrs, the best air quality in Monument, Colorado was observed at 12:00:00 on 2026-09-06.
The current air quality in Monument, Colorado is 28, categorized as Good based on real-time data.
The most common pollutant in Monument, Colorado is O3.
If the air quality in Monument, Colorado is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Monument, Colorado is 4.108 μg/m3.
The current PM10 concentration at Monument, Colorado is 15.945 μg/m3.
The current carbon monoxide (CO) concentration at Monument, Colorado is 0.19 ppm.
The current sulfur dioxide (SO2) concentration at Monument, Colorado is 0.596 ppb.
The current ozone (O3) concentration at Monument, Colorado is 29.819 ppm.
The current nitrogen dioxide (NO2) concentration at Monument, Colorado is 4.07 ppb.
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