Helena AQ Webcam | Wildfire Smoke AQ Archive   | Winter AQ Archive   | Today’s Air Methodology


Today’s Air has recently been updated, click here for more information.

Today's Air Quality Conditions

Wildfire Smoke Outlook


Health Effects Category by Air Monitoring Station

Based on Average Measured Concentrations of Particulate Matter 2.5

As Of Hour Ending 5:00 AM MDT on 8/24/2016

Today’s Air has recently been updated, click here for more information.

Today's Air Quality Conditions

Health Effects Based on Average Measured Concentration of PM 2.5 As Of Hour Ending 5:00 AM MDT on 8/24/2016

Billings Air Quality is Good.Birney Air Quality is Good.Bozeman Air Quality is Good.Broadus Air Quality is Good.Butte Air Quality is Good.Dillon Air Quality is Good.Flathead Valley Air Quality is Good.Frenchtown Air Quality is Good.Great Falls Air Quality is Good.Hamilton Air Quality is Unhealthy for Sensitive Groups.Helena Air Quality is Good.Lewistown Air Quality is Good.Libby Air Quality is Good.Malta Air Quality is Good.Missoula Air Quality is Good.Seeley Lake Air Quality is Good.Sidney Air Quality is Good.West Yellowstone Air Quality is Unhealthy.

The color of the dot on the map is determined by the worst of the most recent 1-hour, 8-hour and 24-hour rolling averages and these breakpoints, unless the 1-hour concentration is less than 15 µg/m3, in which case the dot color is green (Good). See the methodology graphically here.



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.





*This application was developed in collaboration with Helena High School Students for the Governor’s Mobile App Challenge.