Stay updated with real-time air quality in Montrose, 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)
43
Good
Montrose, Colorado
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.66 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.98 μg/m³
0
55
155
255
425
605+
46.02 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
1.31 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Montrose, Colorado
Montrose, Colorado
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AQI 40
Good
3.44μg/m³
PM2.5
12.81μg/m³
PM10
42.57ppb
O3
0.36ppb
SO2
1.79ppb
NO2
0.20ppm
CO
AQI 40
Good
3.21μg/m³
PM2.5
13.98μg/m³
PM10
42.53ppb
O3
0.36ppb
SO2
1.80ppb
NO2
0.20ppm
CO
AQI 39
Good
3.60μg/m³
PM2.5
13.02μg/m³
PM10
42.41ppb
O3
0.36ppb
SO2
1.85ppb
NO2
0.20ppm
CO
AQI 39
Good
4.08μg/m³
PM2.5
11.26μg/m³
PM10
42.00ppb
O3
0.36ppb
SO2
1.52ppb
NO2
0.20ppm
CO
AQI 39
Good
4.35μg/m³
PM2.5
11.82μg/m³
PM10
42.04ppb
O3
0.34ppb
SO2
2.54ppb
NO2
0.20ppm
CO
AQI 44
Good
4.44μg/m³
PM2.5
10.02μg/m³
PM10
46.58ppb
O3
0.31ppb
SO2
1.53ppb
NO2
0.19ppm
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 Montrose, Colorado is updated on an hourly basis.
The worst air quality in Montrose, Colorado was recorded at 01:00:00 on 2025-09-06.
The best air quality in Montrose, Colorado was recorded at 03:00:00 on 2025-09-06.
The real-time air quality index in Montrose, Colorado is 49, currently categorized as Good.
The most common pollutant in Montrose, Colorado is PM2.5.
If the air quality in Montrose, Colorado is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Montrose, Colorado at present are 9.471 μg/m3.
The current PM10 levels in Montrose, Colorado are 23.455 μg/m3.
The current carbon monoxide (CO) level in Montrose, Colorado is 0.244 ppm.
The current sulfur dioxide (SO2) levels in Montrose, Colorado are 0.425 ppb.
The current ozone (O3) levels at Montrose, Colorado is 43.378 ppm.
The current nitrogen dioxide (NO2) levels at Montrose, Colorado is 1.403 ppb.
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