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)
31
Good
Monument, Colorado
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.68 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.98 μg/m³
0
55
155
255
425
605+
32.79 ppb
0
55
71
86
201
201+
0.68 ppb
0
36
76
186
605
1005+
6.32 ppb
0
54
101
361
1250
2050+
0.37 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Monument, Colorado
Monument, Colorado
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AQI 31
Good
5.19μg/m³
PM2.5
24.88μg/m³
PM10
33.47ppb
O3
0.70ppb
SO2
6.44ppb
NO2
0.36ppm
CO
AQI 31
Good
4.65μg/m³
PM2.5
20.14μg/m³
PM10
33.31ppb
O3
0.70ppb
SO2
6.40ppb
NO2
0.35ppm
CO
AQI 31
Good
3.95μg/m³
PM2.5
17.29μg/m³
PM10
33.10ppb
O3
0.70ppb
SO2
6.40ppb
NO2
0.36ppm
CO
AQI 30
Good
5.40μg/m³
PM2.5
22.35μg/m³
PM10
31.50ppb
O3
0.66ppb
SO2
6.86ppb
NO2
0.39ppm
CO
AQI 31
Good
4.61μg/m³
PM2.5
19.95μg/m³
PM10
33.24ppb
O3
0.70ppb
SO2
6.31ppb
NO2
0.36ppm
CO
AQI 31
Good
4.48μg/m³
PM2.5
19.60μg/m³
PM10
33.39ppb
O3
0.70ppb
SO2
6.34ppb
NO2
0.36ppm
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 05:00:00 on 2026-01-22.
In the last 24 hrs, the best air quality in Monument, Colorado was observed at 06:00:00 on 2026-01-22.
The current air quality in Monument, Colorado is 31, 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 4.676 μg/m3.
The current PM10 concentration at Monument, Colorado is 26.982 μg/m3.
The current carbon monoxide (CO) concentration at Monument, Colorado is 0.369 ppm.
The current sulfur dioxide (SO2) concentration at Monument, Colorado is 0.683 ppb.
The current ozone (O3) concentration at Monument, Colorado is 32.786 ppm.
The current nitrogen dioxide (NO2) concentration at Monument, Colorado is 6.316 ppb.
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