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)
31
Good
Frederick, Colorado
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.42 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.05 μg/m³
0
55
155
255
425
605+
33.29 ppb
0
55
71
86
201
201+
0.54 ppb
0
36
76
186
605
1005+
17.39 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Frederick, Colorado
Frederick, Colorado
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AQI 31
Good
4.42μg/m³
PM2.5
16.05μg/m³
PM10
33.29ppb
O3
0.54ppb
SO2
17.39ppb
NO2
0.23ppm
CO
AQI 34
Good
4.20μg/m³
PM2.5
9.97μg/m³
PM10
37.50ppb
O3
0.53ppb
SO2
12.75ppb
NO2
0.24ppm
CO
AQI 35
Good
3.80μg/m³
PM2.5
17.00μg/m³
PM10
37.79ppb
O3
0.54ppb
SO2
7.34ppb
NO2
0.22ppm
CO
AQI 31
Good
3.36μg/m³
PM2.5
12.24μg/m³
PM10
33.36ppb
O3
0.52ppb
SO2
16.77ppb
NO2
0.24ppm
CO
AQI 36
Good
3.73μg/m³
PM2.5
11.80μg/m³
PM10
38.74ppb
O3
0.54ppb
SO2
12.14ppb
NO2
0.25ppm
CO
AQI 36
Good
3.73μg/m³
PM2.5
13.43μg/m³
PM10
38.94ppb
O3
0.53ppb
SO2
12.00ppb
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 06:00:00 on 2025-06-05.
In the last 24 hours, the best air quality in Frederick, Colorado was observed at 05:00:00 on 2025-06-06.
As of now, the AQI in Frederick, Colorado is 31, indicating Good conditions.
Frederick, Colorado air has the highest levels of O3.
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 4.425 μg/m3.
The PM10 concentration in Frederick, Colorado is 16.051 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Frederick, Colorado is 0.225 ppm.
Currently, Frederick, Colorado has a sulfur dioxide (SO2) concentration of 0.535 ppb.
The current ozone (O3) level in Frederick, Colorado at the moment is 33.287 ppm.
Nitrogen dioxide (NO2) level in Frederick, Colorado at the moment is 17.391 ppb.
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