Fire & Smoke Management

Air Monitoring Particulate Data
Air Quality Conditions Web Cam
Health Effect Categories
Breakpoint & Associated Visibility
Visibility Ranges
State & Federal AQ Standards
Open Burning Information
Prescribed Burning
Other Interesting Fire Links

Check Today's Air Quality Conditions

Forest Fire Smoke Report
From State Medical Officer Steven D. Helgerson, MD, MPH Pertinent information on acute and long-term effects from smoke exposure.
Montana Dept. of Public Health
& Human Services News Release on the health impacts of wildfire smoke.
Wildfire Smoke - A Guide for Public Health Officials
Previous Updates
2006 | 2005
Open Burning Rules
77- 5-103(3)
76-13-102(7)
76-13-109
These rules (MCA) apply to all activities on all classified forest land within Montana during the legal fire season, included any extension there of.
Air Resources Management Bureau
Permitting & Compliance Division
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fire and smoke

 

Smoke Management in Montana

Breakpoints and Associated Visibility
for Particulate Concentrations
Health Effect Categories 24-Hour TEOM
(ug/m3) 1
8-Hour TEOM
(ug/m3) 2
1-Hour TEOM
(ug/m3) 3
Visibility
(miles)4
Good 0.0 - 15.4 0.0 - 22.0 0.0 - 40.0 > 11.25
Moderate 15.5 - 40.4 22.1 - 57.7 40.1 - 80.0 5.62 - 11.24
Unhealthy for Sensitive Groups
40.5 - 65.4

57.8 - 93.4

80.1 - 175.0

2.57 - 5.61
Unhealthy 65.5 - 150.4 93.5 - 214.9 175.1 - 300.0 1.50 - 2.56
Very Unhealthy 150.5 - 250.4 215.0 - 357.7 300.1 - 500.0 0.9 - 1.49
Hazardous > 250.5 > 357.8 > 500.1 < 0.9
  1. Guideline For Reporting Of Daily Air Quality – Air Quality Index (AQI),
    EPA-454/R-99-010, July 1999, U.S. Environmental Protection Agency,
    Office of Air Quality Planning and Standards, Research Triangle Park,,
    North Carolina, 27711.
  2. Applied U.S. EPA SCREEN adjustment factor for 8-hour, 0.7, multiplied
    to the 24-hour PM-2.5 Pollutant Standards Index.
  3. Fire, Smoke and Health Workshop, Seattle, WA, June 5 - 6, 2001.  USEPA,
    CDC, W.
  4. Based on Helena Montana empirical study (July 2000 Montana Dept. of
    Environmental Quality).