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)
62
Moderate
Monument, Colorado
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
14.77 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
46.46 μg/m³
0
55
155
255
425
605+
48.51 ppb
0
55
71
86
201
201+
1.10 ppb
0
36
76
186
605
1005+
22.78 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Monument, Colorado
Monument, Colorado
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AQI 67
Moderate
17.54μg/m³
PM2.5
72.34μg/m³
PM10
54.41ppb
O3
1.10ppb
SO2
13.35ppb
NO2
0.39ppm
CO
AQI 67
Moderate
17.68μg/m³
PM2.5
69.34μg/m³
PM10
54.45ppb
O3
1.08ppb
SO2
10.84ppb
NO2
0.39ppm
CO
AQI 67
Moderate
17.60μg/m³
PM2.5
77.92μg/m³
PM10
52.79ppb
O3
1.08ppb
SO2
9.22ppb
NO2
0.39ppm
CO
AQI 62
Moderate
15.00μg/m³
PM2.5
57.63μg/m³
PM10
46.62ppb
O3
1.13ppb
SO2
18.21ppb
NO2
0.41ppm
CO
AQI 66
Moderate
17.45μg/m³
PM2.5
68.74μg/m³
PM10
52.23ppb
O3
1.08ppb
SO2
10.77ppb
NO2
0.39ppm
CO
AQI 67
Moderate
17.51μg/m³
PM2.5
69.52μg/m³
PM10
52.62ppb
O3
1.08ppb
SO2
10.31ppb
NO2
0.39ppm
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 10:00:00 on 2026-08-09.
In the last 24 hrs, the best air quality in Monument, Colorado was observed at 04:00:00 on 2026-08-10.
The current air quality in Monument, Colorado is 62, categorized as Moderate based on real-time data.
The most common pollutant in Monument, Colorado is PM2.5.
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 15.326 μg/m3.
The current PM10 concentration at Monument, Colorado is 59.12 μg/m3.
The current carbon monoxide (CO) concentration at Monument, Colorado is 0.397 ppm.
The current sulfur dioxide (SO2) concentration at Monument, Colorado is 1.107 ppb.
The current ozone (O3) concentration at Monument, Colorado is 54.302 ppm.
The current nitrogen dioxide (NO2) concentration at Monument, Colorado is 13.327 ppb.
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