Montana, USA live air quality index now
Stay updated with real-time air quality in Montana, USA 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
Montana, USA
Last updated: ... (Local time)
Major air pollutants in Montana, USA
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
2.74 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
11.57 μg/m³
0
55
155
255
425
605+
Ozone (O3)
46.30 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.99 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
1.21 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Very high
Montana, USA
Montana, USA
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Air quality in cities of Montana, USA
| No results found | |||||||
| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
Air quality in nearby states
Idaho, USA
AQI 43
Good
2.86μg/m³
PM2.5
12.78μg/m³
PM10
45.98ppb
O3
1.08ppb
SO2
1.41ppb
NO2
0.18ppm
CO
Wyoming, USA
AQI 47
Good
1.64μg/m³
PM2.5
6.46μg/m³
PM10
51.04ppb
O3
0.82ppb
SO2
1.19ppb
NO2
0.16ppm
CO
Utah, USA
AQI 48
Good
2.22μg/m³
PM2.5
9.44μg/m³
PM10
51.71ppb
O3
0.58ppb
SO2
2.66ppb
NO2
0.18ppm
CO
North Dakota, USA
AQI 41
Good
2.88μg/m³
PM2.5
10.27μg/m³
PM10
44.13ppb
O3
0.92ppb
SO2
1.72ppb
NO2
0.17ppm
CO
Washington, USA
AQI 36
Good
2.61μg/m³
PM2.5
10.28μg/m³
PM10
39.22ppb
O3
0.22ppb
SO2
5.71ppb
NO2
0.13ppm
CO
Oregon, USA
AQI 40
Good
2.67μg/m³
PM2.5
11.54μg/m³
PM10
42.52ppb
O3
0.29ppb
SO2
4.35ppb
NO2
0.19ppm
CO
How accurate is Montana, USA air quality data?
Air quality data and pollutant measurements for Montana, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
Frequently asked questions
How often is the air quality data for Montana, USA updated?
The air quality for Montana, USA is updated every hour.
When was the worst air quality at Montana, USA in the last 24 hrs?
The worst air quality in Montana, USA in the last 24 hours was observed at 12:00:00 on 2026-04-19.
When was the best air quality at Montana, USA in the last 24 hrs?
In the last 24 hrs, the best air quality in Montana, USA was observed at 10:00:00 on 2026-04-18.
What is the current air quality in Montana, USA?
The current air quality in Montana, USA is 43, categorized as Good based on real-time data.
What pollutant is the most common in Montana, USA?
The most common pollutant in Montana, USA is O3.
What should I do if the air quality in Montana, USA is poor?
If the air quality in Montana, USA is poor, consider staying indoors and wearing a mask to protect yourself.
What is the current concentration of PM2.5 in Montana, USA?
The current PM2.5 concentration at Montana, USA is 3.319 μg/m3.
What is the current concentration of PM10 in Montana, USA?
The current PM10 concentration at Montana, USA is 12.564 μg/m3.
What is the current concentration of carbon monoxide (CO) in Montana, USA?
The current carbon monoxide (CO) concentration at Montana, USA is 0.202 ppm.
What is the current concentration of sulfur dioxide (SO2) in Montana, USA?
The current sulfur dioxide (SO2) concentration at Montana, USA is 1.283 ppb.
What is the current concentration of ozone (O3) in Montana, USA?
The current ozone (O3) concentration at Montana, USA is 45.808 ppm.
What is the current concentration of nitrogen dioxide (NO2) in Montana, USA?
The current nitrogen dioxide (NO2) concentration at Montana, USA is 1.087 ppb.
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