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Today's Air Quality Conditions

Current AQ and Forecast


Health Effects Category by Air Monitoring Station

Based on Average Measured Concentrations of Particulate Matter 2.5

As Of Hour Ending 7:00 AM MDT on 8/28/2015
Today's Air Quality Conditions

Health Effects Based on Average Measured Concentration of PM 2.5 As Of Hour Ending 7:00 AM MDT on 8/28/2015

Billings Air Quality is Unhealthy for Sensitive Groups.Birney Air Quality is Unhealthy for Sensitive Groups.Bozeman Air Quality is Unhealthy for Sensitive Groups.Broadus Air Quality is Unhealthy for Sensitive Groups.Browning Air Quality is Very Unhealthy.Butte Air Quality is Unhealthy for Sensitive Groups.Flathead Valley Air Quality is Very Unhealthy.Frenchtown Air Quality is Very Unhealthy.Great Falls Air Quality is Unhealthy.Hamilton Air Quality is Hazardous.Helena Air Quality is Unhealthy.Lewistown Air Quality is Unhealthy.Libby Air Quality is Very Unhealthy.Malta Air Quality is Unhealthy for Sensitive Groups.Missoula Air Quality is Unhealthy.Saint Mary Air Quality is Very Unhealthy.Seeley Lake Air Quality is Very Unhealthy.Sidney Air Quality is Current Hour Unavailable.West Yellowstone Air Quality is Good.


Health Effects Categories


Air quality data for the current hour are unavailable.
No health impacts are expected when air quality is in this range.
Unusually sensitive people should consider limiting prolonged outdoor exertion.
Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion.
Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
All children and adults should avoid or limit all outdoor exertion.
Hazardous
Very Unhealthy
Unhealthy
Unhealthy for Sensitive Groups
Moderate
Good
Current Hour Unavailable

 

Explanation of Categories: Breakpoints and Associated Visibility for Particulate Concentrations.


Health Effects Categories

Hazardous

Recommendation: All children and adults should avoid or limit all outdoor exertion.

Very Unhealthy

Recommendation: Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.

Unhealthy

Recommendation: Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion.

Unhealthy for Sensitive Groups

Recommendation: Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.

Moderate

Recommendation: Unusually sensitive people should consider limiting prolonged outdoor exertion.

Good

Recommendation: No health impacts are expected when air quality is in this range.

Current Hour Unavailable

Air quality data for the current hour are unavailable.





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