1. MONTANA REGIONAL HAZE VISIBILITY PROTECTION PLAN
BOB HABECK
Montana Department of Environmental Quality
March 29, 2004

2. GOALS Goal #1 - Regulate for visibility protection
equitably among sources.
Goal #2 - Accommodate sources
to greatest extent possible.
Goal #3 - Provide cost-effective
implementation and tracking.
Goal #4 - Keep it simple.

3. RHR 308 REQUIREMENTS Improve 20% worst / Protect 20% best.
Reasonable Progress Goals / Reports.
Interstate & Intrastate Protection.
Implement BART on eligible sources.
Baseline & Natural Visibility Conditions.
Long-Term Strategy Report.
Develop Monitoring Strategy.
State / FLM coordination.

4. ANTICIPATED SOURCES TO REGULATE
TAILORED STRATEGIES
ANTICIPATED SOURCES TO REGULATE
BART sources (2 maybe 3)
Major / minor point sources (maybe)
Major open burners (maybe)
Interstate sources (unknown)
International sources (unknown)

5. IMPLEMENTATION
PERMANENT AND ENFORCEABLE VISIBILITY CONTROL STRATEGIES WILL BE IMPLEMENTED THROUGH:
Existing Rules & Permits.
Existing Smoke Management Program.
Interested Party Advisory Workgroup.
Possible Interstate Compacts / Programs.

6. PRODUCTS FROM AOH Spatial & Temporal Products: Source Trajectories:
Small Grids: Unit of geography most likely will be airsheds – vs. statewide.
Seasonality: Causes of haze by season.
Source Trajectories:
Class I areas “in” – point source “out” modeling.
Causes vs Attribution: What’s the difference?

7. SPATIAL DISTRIBUTION

8. PRODUCTS FROM AOH
Easy to Explain Charts: For negotiations with sources – explanation to interested party advisory workgroup.
Natural Background: Break down of emission sources for each Class I area.
International Sources: Need to know what amount of ‘background’ can be expected from non-participating man-made sources of emissions.

9. Easy to Explain Charts - Examples:
PRODUCTS FROM AOH
Easy to Explain Charts - Examples:
THE FOLLOWING SLIDES ILLUSTRATE TYPES OF GRAPHICS THAT MAY BE CONSIDERED FOR DISPLAYING INFORMATION IN A PUBLIC-FRIENDLY FORMAT

10. The Five Particle Types That Make up Nearly all Particulate Matter found in the Atmosphere.

11. PM 2.5 In Ambient Air: A Complex Mixture

12. Causes of Haze Report “Hazagon” Analysis
The hazagon provides a way to visualize speciated extinction for those sites in the 20 percent worst category

14. THE END