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)
38
Good
Golden, Colorado
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.85 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.16 μg/m³
0
55
155
255
425
605+
41.34 ppb
0
55
71
86
201
201+
1.08 ppb
0
36
76
186
605
1005+
22.03 ppb
0
54
101
361
1250
2050+
0.54 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Golden, Colorado
Golden, Colorado
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AQI 38
Good
6.60μg/m³
PM2.5
23.22μg/m³
PM10
31.26ppb
O3
1.29ppb
SO2
27.70ppb
NO2
0.86ppm
CO
AQI 58
Moderate
13.32μg/m³
PM2.5
51.32μg/m³
PM10
14.78ppb
O3
1.23ppb
SO2
33.52ppb
NO2
0.94ppm
CO
AQI 58
Moderate
12.76μg/m³
PM2.5
48.22μg/m³
PM10
15.40ppb
O3
1.32ppb
SO2
32.94ppb
NO2
0.93ppm
CO
AQI 56
Moderate
12.07μg/m³
PM2.5
47.73μg/m³
PM10
18.58ppb
O3
1.12ppb
SO2
32.15ppb
NO2
0.93ppm
CO
AQI 62
Moderate
15.30μg/m³
PM2.5
54.85μg/m³
PM10
8.26ppb
O3
1.47ppb
SO2
35.60ppb
NO2
0.92ppm
CO
AQI 30
Good
4.36μg/m³
PM2.5
17.64μg/m³
PM10
32.01ppb
O3
1.13ppb
SO2
27.10ppb
NO2
0.85ppm
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 06:00:00 on 2025-12-14.
The best air quality in Golden, Colorado was recorded at 08:00:00 on 2025-12-14.
The real-time air quality index in Golden, Colorado is 38, 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 4.851 μg/m3.
The current PM10 levels in Golden, Colorado are 10.161 μg/m3.
The current carbon monoxide (CO) level in Golden, Colorado is 0.537 ppm.
The current sulfur dioxide (SO2) levels in Golden, Colorado are 1.085 ppb.
The current ozone (O3) levels at Golden, Colorado is 41.335 ppm.
The current nitrogen dioxide (NO2) levels at Golden, Colorado is 22.03 ppb.
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