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)
18
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)
2.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
9.54 μg/m³
0
55
155
255
425
605+
Ozone (O3)
18.86 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.63 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
5.05 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
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 44
Good
7.85μg/m³
PM2.5
30.62μg/m³
PM10
17.49ppb
O3
0.36ppb
SO2
6.37ppb
NO2
0.27ppm
CO
Wyoming, USA
AQI 21
Good
1.79μg/m³
PM2.5
6.89μg/m³
PM10
22.84ppb
O3
0.68ppb
SO2
4.86ppb
NO2
0.17ppm
CO
Utah, USA
AQI 27
Good
5.46μg/m³
PM2.5
21.19μg/m³
PM10
15.11ppb
O3
0.52ppb
SO2
11.69ppb
NO2
0.33ppm
CO
North Dakota, USA
AQI 16
Good
2.60μg/m³
PM2.5
10.17μg/m³
PM10
13.61ppb
O3
0.72ppb
SO2
4.35ppb
NO2
0.14ppm
CO
Washington, USA
AQI 38
Good
7.24μg/m³
PM2.5
31.33μg/m³
PM10
9.23ppb
O3
0.29ppb
SO2
9.02ppb
NO2
0.23ppm
CO
Oregon, USA
AQI 52
Moderate
9.97μg/m³
PM2.5
44.19μg/m³
PM10
11.73ppb
O3
0.36ppb
SO2
7.40ppb
NO2
0.34ppm
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 09:00:00 on 2025-10-21.
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 2025-10-22.
What is the current air quality in Montana, USA?
The current air quality in Montana, USA is 18, 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 2.251 μg/m3.
What is the current concentration of PM10 in Montana, USA?
The current PM10 concentration at Montana, USA is 9.544 μg/m3.
What is the current concentration of carbon monoxide (CO) in Montana, USA?
The current carbon monoxide (CO) concentration at Montana, USA is 0.218 ppm.
What is the current concentration of sulfur dioxide (SO2) in Montana, USA?
The current sulfur dioxide (SO2) concentration at Montana, USA is 0.633 ppb.
What is the current concentration of ozone (O3) in Montana, USA?
The current ozone (O3) concentration at Montana, USA is 18.864 ppm.
What is the current concentration of nitrogen dioxide (NO2) in Montana, USA?
The current nitrogen dioxide (NO2) concentration at Montana, USA is 5.046 ppb.
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