Stay updated with real-time air quality in Golden, 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)
39
Good
Golden, Colorado
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.19 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.98 μg/m³
0
55
155
255
425
605+
42.21 ppb
0
55
71
86
201
201+
0.50 ppb
0
36
76
186
605
1005+
17.99 ppb
0
54
101
361
1250
2050+
0.32 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Golden, Colorado
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AQI 36
Good
2.37μg/m³
PM2.5
11.19μg/m³
PM10
39.16ppb
O3
0.51ppb
SO2
18.33ppb
NO2
0.32ppm
CO
AQI 26
Good
3.16μg/m³
PM2.5
13.30μg/m³
PM10
28.39ppb
O3
0.54ppb
SO2
23.04ppb
NO2
0.33ppm
CO
AQI 25
Good
3.19μg/m³
PM2.5
13.39μg/m³
PM10
27.16ppb
O3
0.56ppb
SO2
23.57ppb
NO2
0.33ppm
CO
AQI 32
Good
2.69μg/m³
PM2.5
11.45μg/m³
PM10
34.63ppb
O3
0.49ppb
SO2
20.19ppb
NO2
0.33ppm
CO
AQI 24
Good
3.55μg/m³
PM2.5
15.41μg/m³
PM10
20.76ppb
O3
0.55ppb
SO2
24.52ppb
NO2
0.33ppm
CO
AQI 34
Good
2.20μg/m³
PM2.5
10.19μg/m³
PM10
36.74ppb
O3
0.49ppb
SO2
19.12ppb
NO2
0.32ppm
CO
Air quality measurements for Colorado, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Golden, Colorado is updated on an hourly basis.
The worst air quality in Golden, Colorado was recorded at 12:00:00 on 2026-03-05.
The best air quality in Golden, Colorado was recorded at 12:00:00 on 2026-03-04.
The real-time air quality index in Golden, Colorado is 39, currently categorized as Good.
The most common pollutant in Golden, Colorado is O3.
If the air quality in Golden, Colorado is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Golden, Colorado at present are 2.193 μg/m3.
The current PM10 levels in Golden, Colorado are 10.981 μg/m3.
The current carbon monoxide (CO) level in Golden, Colorado is 0.315 ppm.
The current sulfur dioxide (SO2) levels in Golden, Colorado are 0.496 ppb.
The current ozone (O3) levels at Golden, Colorado is 42.206 ppm.
The current nitrogen dioxide (NO2) levels at Golden, Colorado is 17.987 ppb.
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