Stay updated with real-time air quality in Denver, 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
Denver, Colorado
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
15.38 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
61.98 μg/m³
0
55
155
255
425
605+
51.77 ppb
0
55
71
86
201
201+
0.22 ppb
0
36
76
186
605
1005+
7.39 ppb
0
54
101
361
1250
2050+
0.46 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Denver, Colorado
Denver, Colorado
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AQI 69
Moderate
19.09μg/m³
PM2.5
57.79μg/m³
PM10
26.68ppb
O3
0.37ppb
SO2
12.45ppb
NO2
0.56ppm
CO
AQI 75
Moderate
21.68μg/m³
PM2.5
90.98μg/m³
PM10
27.63ppb
O3
0.38ppb
SO2
13.78ppb
NO2
0.53ppm
CO
AQI 77
Moderate
23.46μg/m³
PM2.5
102.28μg/m³
PM10
28.84ppb
O3
0.36ppb
SO2
13.16ppb
NO2
0.53ppm
CO
AQI 67
Moderate
18.12μg/m³
PM2.5
68.29μg/m³
PM10
26.30ppb
O3
0.34ppb
SO2
12.51ppb
NO2
0.49ppm
CO
AQI 69
Moderate
19.40μg/m³
PM2.5
60.48μg/m³
PM10
27.71ppb
O3
0.22ppb
SO2
8.37ppb
NO2
0.48ppm
CO
AQI 71
Moderate
19.83μg/m³
PM2.5
84.38μg/m³
PM10
26.90ppb
O3
0.40ppb
SO2
13.81ppb
NO2
0.57ppm
CO
Air quality and pollutant data for Colorado, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Denver, Colorado is updated every hour for accuracy.
In the past 24 hours, the air quality in Denver, Colorado was at its worst at 11:00:00 on 2025-09-05.
In the last 24 hours, the best air quality in Denver, Colorado was observed at 10:00:00 on 2025-09-06.
As of now, the AQI in Denver, Colorado is 62, indicating Moderate conditions.
Denver, Colorado air has the highest levels of PM2.5.
Poor air quality in Denver, Colorado means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Denver, Colorado are currently 15.378 μg/m3.
The PM10 concentration in Denver, Colorado is 61.979 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Denver, Colorado is 0.457 ppm.
Currently, Denver, Colorado has a sulfur dioxide (SO2) concentration of 0.216 ppb.
The current ozone (O3) level in Denver, Colorado at the moment is 51.769 ppm.
Nitrogen dioxide (NO2) level in Denver, Colorado at the moment is 7.392 ppb.
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