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Wildfire Smoke Update
Wednesday, October 17, 2012 4:00 PM

Satellite Photos | Locations and Smoke Conditions

Today's Report and Forecast Today's Summary
With the recent rains, cold temperatures, and shorter days, wildfire activity has all but ceased across Idaho and Montana. Air quality has been GOOD in all observing locations and should no longer be affected by wildfire smoke.

I thank you for your attention during this long fire season. This website will be updated again at the start of next year's fire season.

Winter is fast approaching, and western Montana valleys are especially prone to periods of poor air quality during this time. The Winter Air Quality page will be updated almost daily starting December 1 or sooner if necessary.
Residents near active fires and under plumes aloft need to remain aware of current conditions and use the visibility guidelines to guide their activity decisions as the situation changes.

Air Quality Bureau
Montana Department of Environmental Quality
Phone: (406) 444-3490
Email: DEQMTSmoke@mt.gov




Real time particulate information is currently available in most of the larger urban areas from MTDEQ's Today's Air website.

Today's particulate report below compares particulate levels received from DEQ's
reporting stations with MTDEQ’s Health Effect Categories.

Locations and severity of PM 2.5 particulate values over the past 24 hours from the time above.
Health Effects Categories City
  Very Unhealthy  
  Unhealthy for Sensitive Groups  




B1(x) One-hour BAM value (number of values)
B8(x) Eight-hour average BAM
B24 24 hour  average BAM value
Local impacts in areas immediately adjacent to active fires are expected to exceed some or all of the advisory levels.  DEQ recommends the use of local visibility guidelines to evaluate possible health risks and make informed activity decisions.