1. Characterization of Emissions In and Near Class I Areas in the West Forum on Sources In and Near Class I Areas

2. Forum Charge Develop an approach to implement strategies to reduce and prevent air pollution from emission sources located within and near Class I areas on the Colorado Plateau

3. Why look in and near? Potential for disproportionate impacts Emissions can vary widely Complement regional strategies Help achieve “reasonable progress” Foster and inform cooperation among –Federal land managers –Park & wilderness neighbors –Gateway communities –Regulatory agencies

4. GCVTC Recommendations Develop Strategies for nearby communities and activities: “All significant sources or combinations of sources near each Class I area must be examined…”

5. Sources In Class I Areas WRAP-sponsored microinventories of: –Zion NP (UT), Petrified Forest NP (AZ), Capitol Reef NP (UT), Glen Canyon NRA* (AZ-UT). NPS-sponsored microinventories of –Badlands NP (SD), Glacier NP (MT), Grand Canyon NP (AZ), Theodore Roosevelt NP (ND), Wind Cave NP (SD), Carlsbad Caverns NP (NM), Chiricahua NM (AZ), Lake Mead NRA* (AZ-NV), Grand Teton NP (WY), Yellowstone NP (WY-MT- ID) * Class II areaBold indicates final report

6. Grand Canyon Microinventory

7. Grand Canyon Non-Fire

8. Sources Near Class I Areas First-time characterization and comparison of emissions near all western Class I areas to portray the landscape of emissions Classify Class I areas by magnitude, trend, seasonality, dominant emission type Create basis for microinventories, pollutant dispersion modeling, and control strategy evaluation Identify candidates for a gateway community demonstration project

9. Approach Use 1996 emission inventory (7 pollutants) Identify area of interest (out to 50 km.) Spatially allocate area source emissions to area of interest. Map point sources Interview local officials –Verify point source emissions –Identify sources, trends, and risks not evident in regional emission databases

10. Approach (continued) Classify areas Analyze a subset in more depth –10-20 areas –Additional interviews –Local datasets, visitation rates, trends, etc. –Identify best methods for future work Compare to IMPROVE monitoring data Post on WRAP Web site

11. Class I Area Groups 117 Class I areas in 82 groups Currently adding remaining Alaskan & Tribal Class I areas

12. Point Sources Gila NWA, NM

13. Point Source Relationships Rocky Mountain National Park, CO

14. Land Use / Land Cover Maps Joshua Tree NP NWA, CA

15. Population Density Maps Mount Hood NWA, OR

16. Tabular Data In addition to map presentations, data are also available in tables: –Point Sources –Total Area of Analysis –Area of Analysis by county

17. Source Categories Point Sources Area Sources (excluding windblown dust) –Residential Wood Combustion, Other Fuel Combustion, Industrial Processes, Construction Dust, Solvent Utilization, Petroleum Storage & Transport, Waste Disposal & Recycling, Agricultural Activities (except burning) Fires –Management Fires, Wildfires On-Road Mobile Sources –Light-Duty Vehicle Emissions, Heavy-Duty Vehicle Emissions, Fugitive Dust - Paved Roads, Fugitive Dust - Unpaved Roads Off-Road Mobile Sources (excluding airports & commercial marine vessels) –Lawn & Garden Equipment, Recreational Equipment, Commercial & Industrial Equipment, Construction & Mining Equipment, Agricultural Equipment, Recreational Marine Vessels, Locomotives & Railroad, Equipment, Logging Equipment

18. Wildland Fire 1996 fires are treated like “point sources.” All emissions from fires starting within the buffer included No emissions from fires starting outside the buffer included.