Current air quality index in Colorado, USA today
Stay updated with real-time air quality in Colorado, USA 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)
29
Good
Colorado, USA
Last updated: ... (Local time)
Common air pollutants in Colorado, USA
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
4.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
16.90 μg/m³
0
55
155
255
425
605+
Ozone (O3)
31.45 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.48 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
9.79 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Colorado, USA
Colorado, USA
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Air quality in cities of Colorado, USA
| No results found | |||||||
| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
Air quality in nearby states
Nebraska, USA
AQI 27
Good
4.67μg/m³
PM2.5
18.07μg/m³
PM10
26.19ppb
O3
0.38ppb
SO2
5.72ppb
NO2
0.15ppm
CO
Wyoming, USA
AQI 34
Good
1.73μg/m³
PM2.5
8.80μg/m³
PM10
36.51ppb
O3
0.88ppb
SO2
1.81ppb
NO2
0.12ppm
CO
New Mexico, USA
AQI 44
Good
7.63μg/m³
PM2.5
32.09μg/m³
PM10
38.12ppb
O3
0.23ppb
SO2
3.32ppb
NO2
0.17ppm
CO
Utah, USA
AQI 34
Good
4.16μg/m³
PM2.5
17.85μg/m³
PM10
36.62ppb
O3
0.60ppb
SO2
6.81ppb
NO2
0.15ppm
CO
Kansas, USA
AQI 22
Good
4.35μg/m³
PM2.5
15.94μg/m³
PM10
23.67ppb
O3
0.36ppb
SO2
3.04ppb
NO2
0.15ppm
CO
South Dakota, USA
AQI 38
Good
7.13μg/m³
PM2.5
21.53μg/m³
PM10
31.79ppb
O3
0.63ppb
SO2
5.46ppb
NO2
0.18ppm
CO
How accurate is Colorado, USA air quality data?
The air quality data for Colorado, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Frequently asked questions
How frequently does the air quality data for Colorado, USA get updated?
Air quality updates for Colorado, USA are available every hour.
What time in the past 24 hours saw the poorest air quality in Colorado, USA?
Colorado, USA experienced its worst air quality at 05:00:00, 2026-05-21.
When was air quality in Colorado, USA the best over the past 24 hours?
The best air quality in Colorado, USA was observed at 10:00:00 on 2026-05-20.
What is the air quality in Colorado, USA right now?
The air quality in Colorado, USA right now is Good, with an AQI of 32.
What pollutant is most frequently found in Colorado, USA?
In Colorado, USA, O3 is the most frequently found pollutant.
What can I do if the air quality in Colorado, USA is poor?
When air quality in Colorado, USA is compromised, staying indoors and wearing a mask can reduce health risks.
What is the PM2.5 concentration in Colorado, USA right now?
Colorado, USA currently has a PM2.5 concentration of 4.76 μg/m3.
What is the current level of PM10 in Colorado, USA?
Colorado, USA currently has a PM10 concentration of 17.204 μg/m3.
What is the current level of carbon monoxide (CO) in Colorado, USA?
The current carbon monoxide (CO) level in Colorado, USA is 0.176 ppm.
What is the current level of sulfur dioxide (SO2) in Colorado, USA?
The current sulfur dioxide (SO2) concentration in Colorado, USA is 0.478 ppb.
What is the current level of ozone (O3) in Colorado, USA?
Colorado, USA currently has an ozone (O3) concentration of 34.744 ppm.
What is the current level of nitrogen dioxide (NO2) in Colorado, USA?
The current level of nitrogen dioxide (NO2) in Colorado, USA is 7.094 ppb.
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