Pollution in Missoula County
Low
Pollution
Prevalence Trend
4-week history
May 3
May 10
May 17
May 24
Low
Moderate
High
Very High
→ Stable
Summary
Pollution risk has remained consistently low and stable throughout the past 12 weeks with no significant changes in the current week.
Key Insights
High
0.0 (Week of May 3)
Low
0.0 (Week of May 3)
Trend
Stable
County Prevalence Map
Updated daily
County-level Pollution prevalence — Montana — May 24, 2026
Published by Hubbub World — health risk data for all US states and counties. Get the bub app for today's data and 30-day forecasts.
Air Pollution risk levels are derived from EPA Air Quality Index (AQI) data, including PM2.5, PM10, ozone, nitrogen dioxide, and sulfur dioxide measurements. Risk scores reflect both current conditions and forecast trends.
Data is updated hourly from EPA monitoring stations and satellite observations.
Sources: EPA AirNow, PurpleAir, satellite observations, Hubbub World air quality model
Frequently Asked Questions
What is Pollution?
Pollution risk reflects local air quality, primarily driven by fine particulate matter (PM2.5), ground-level ozone, and other common air pollutants. Higher risk levels indicate poorer air quality and a greater chance of respiratory irritation, especially for sensitive groups like people with asthma, children, and older adults.
How is Pollution risk measured in Missoula County?
Pollution risk in Missoula County is reported as a weekly score on a four-point scale: Low, Moderate, High, and Very High. The score reflects the modeled burden of Pollution at the county level, validated against public health data from CDC, HHS, NOAA, and other authoritative sources. Methodology details are available at https://www.hubbubworld.com/intelligence#methodology.
What methodology does Hubbub World use?
Hubbub World develops proprietary models on top of the underlying surveillance, environmental, and weather data to produce comparable risk scores across all U.S. counties. Each of the seven risks is reported on a four-point scale (Low, Moderate, High, Very High) so the scores are interpretable without needing the raw underlying numbers. The full methodology — including the modeling approach, validation against authoritative sources, and known limitations — is documented at https://www.hubbubworld.com/intelligence#methodology. The health risk data on Hubbub World is for informational purposes only and does not constitute medical advice. Always consult a healthcare professional for personal health decisions.
Where can I get current Pollution data for Missoula County?
Current Pollution risk levels and 30-day forecasts for Missoula County are exclusive to the bub app, available free on iOS, Android, and Apple Watch at https://bub.hubbubworld.com. This web page is the six-week historical archive — the bub app is where today's data and forecasts live.
How does Missoula County compare to the rest of Montana?
This page shows the six-week weekly history for Missoula County as a heatmap. To compare Missoula County against other counties in Montana, visit the Montana state page on this hub — it links to every county. For an interactive map view that compares all counties side by side, get the bub app at https://bub.hubbubworld.com.
Last updated: May 24, 2026
Data refreshed weekly
Get today's Pollution risk for Missoula County — Download bub