Stay updated with real-time air quality in Frederick, 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)
38
Good
Frederick, Colorado
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
5.61 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
40.60 μg/m³
0
55
155
255
425
605+
23.86 ppb
0
55
71
86
201
201+
0.66 ppb
0
36
76
186
605
1005+
20.73 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Frederick, Colorado
Frederick, Colorado
Scroll To Air Quality MapLoading...
AQI 38
Good
5.61μg/m³
PM2.5
40.60μg/m³
PM10
23.86ppb
O3
0.66ppb
SO2
20.73ppb
NO2
0.24ppm
CO
AQI 27
Good
5.41μg/m³
PM2.5
26.28μg/m³
PM10
22.18ppb
O3
0.67ppb
SO2
16.86ppb
NO2
0.25ppm
CO
AQI 33
Good
6.20μg/m³
PM2.5
27.99μg/m³
PM10
27.48ppb
O3
0.67ppb
SO2
14.72ppb
NO2
0.23ppm
CO
AQI 52
Moderate
9.62μg/m³
PM2.5
47.98μg/m³
PM10
15.47ppb
O3
0.66ppb
SO2
15.22ppb
NO2
0.25ppm
CO
AQI 32
Good
4.32μg/m³
PM2.5
21.34μg/m³
PM10
34.80ppb
O3
0.66ppb
SO2
14.74ppb
NO2
0.25ppm
CO
AQI 30
Good
4.32μg/m³
PM2.5
19.40μg/m³
PM10
31.73ppb
O3
0.67ppb
SO2
14.54ppb
NO2
0.24ppm
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 Frederick, Colorado is updated every hour for accuracy.
In the past 24 hours, the air quality in Frederick, Colorado was at its worst at 02:00:00 on 2025-10-21.
In the last 24 hours, the best air quality in Frederick, Colorado was observed at 01:00:00 on 2025-10-21.
As of now, the AQI in Frederick, Colorado is 38, indicating Good conditions.
Frederick, Colorado air has the highest levels of PM10.
Poor air quality in Frederick, Colorado means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Frederick, Colorado are currently 5.609 μg/m3.
The PM10 concentration in Frederick, Colorado is 40.605 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Frederick, Colorado is 0.239 ppm.
Currently, Frederick, Colorado has a sulfur dioxide (SO2) concentration of 0.663 ppb.
The current ozone (O3) level in Frederick, Colorado at the moment is 23.855 ppm.
Nitrogen dioxide (NO2) level in Frederick, Colorado at the moment is 20.73 ppb.
All Rights Reserved © Ambee Inc. 2025