Characterization of Emissions In and Near Class I Areas in the West

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 area Bold 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 SourcesGila NWA, NM

13. Point Source RelationshipsRocky Mountain National Park, CO

14. Land Use / Land Cover MapsJoshua Tree NP NWA, CA

15. Population Density MapsMount 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.