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)
40
Good
Monument, Colorado
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.44 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
3.19 μg/m³
0
55
155
255
425
605+
42.81 ppb
0
55
71
86
201
201+
0.23 ppb
0
36
76
186
605
1005+
4.30 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Monument, Colorado
Monument, Colorado
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AQI 38
Good
1.42μg/m³
PM2.5
3.89μg/m³
PM10
41.13ppb
O3
0.25ppb
SO2
4.26ppb
NO2
0.13ppm
CO
AQI 40
Good
1.38μg/m³
PM2.5
4.87μg/m³
PM10
42.51ppb
O3
0.27ppb
SO2
4.60ppb
NO2
0.13ppm
CO
AQI 39
Good
1.30μg/m³
PM2.5
4.99μg/m³
PM10
42.18ppb
O3
0.27ppb
SO2
4.60ppb
NO2
0.13ppm
CO
AQI 37
Good
1.27μg/m³
PM2.5
3.05μg/m³
PM10
40.50ppb
O3
0.19ppb
SO2
6.76ppb
NO2
0.13ppm
CO
AQI 38
Good
1.38μg/m³
PM2.5
4.92μg/m³
PM10
41.36ppb
O3
0.27ppb
SO2
4.60ppb
NO2
0.13ppm
CO
AQI 39
Good
1.36μg/m³
PM2.5
4.93μg/m³
PM10
41.55ppb
O3
0.27ppb
SO2
4.60ppb
NO2
0.13ppm
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 01:00:00 on 2025-12-07.
In the last 24 hrs, the best air quality in Monument, Colorado was observed at 05:00:00 on 2025-12-06.
The current air quality in Monument, Colorado is 40, 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 1.444 μg/m3.
The current PM10 concentration at Monument, Colorado is 3.193 μg/m3.
The current carbon monoxide (CO) concentration at Monument, Colorado is 0.13 ppm.
The current sulfur dioxide (SO2) concentration at Monument, Colorado is 0.23 ppb.
The current ozone (O3) concentration at Monument, Colorado is 42.807 ppm.
The current nitrogen dioxide (NO2) concentration at Monument, Colorado is 4.304 ppb.
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