Powder River Basin Coal Review

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Task 1A Report: Current Air Quality Conditions

• Complete document - single file; 4.23mb

Section-by-section

• Cover - 25kb
• Executive Summary - 92kb
• Acronyms and Abbreviations - 30kb
• Table of Contents - 62kb
• Chapter 1: Introduction - 110kb
  • Figure 1-1: Montana and Wyoming Study Area - 510kb
  • Table 1-1: Ambient Monitoring Sites and Data Summary (2002) - 452kb
• Chapter 2: Technical Approach - 235kb
  • Figure 2-1: Modeling Domain, Project Areas, Population Centers, and Sensitive Areas - 233kb
  • Figure 2-2: Receptor Locations for Sensitive Areas - 207kb
  • Figure 2-3: Weather Stations With Surface Data Considered in CALMET Modeling for PRB Air Quality Impact Assessment - 224kb
  • Figure 2-4: Weather Stations With Precipitation Data Used in CALMET Modeling - 163kb
• Chapter 3: Description of Current Conditions - 419kb
  • Figure 3-1:Annual Wind Roses at 10-meter Level at Selected Cities in 1996 - 190kb
  • Figure 3-2: Topography of the Modeling Domain, Population Centers, and Sensitive Receptors - 245kb
  • Figure 3-3: Mean Annual NO2 Concentration in the Wyoming PRB - 170kb
  • Figure 3-4: PM10 24-hour Concentrations for Select Black Thunder and North Rochelle Sites - 172kb
  • Figure 3-5: PM10 24-hour Concentrations for Select Black Thunder and Antelope Sites - 171kb
  • Figure 3-6: PM10 24-hour Concentrations at Select North Rochelle Sites- 171kb
  • Figure 3-7: 3-hour SO2 Concentrations - 169kb
• Chapter 4: Modeled Base Year Impacts (with February 2006 errata pages) - 51kb
  • Figure 4-1: Near-field and Far-field Receptor Locations Used in CALPUFF Modeling - 324kb
  • Table 4-2:  Modeled Concentrations of NO2, PM10, and SO2 - 56kb
  • Table 4-3:  Modeled Impacts on Visibility at Indicated Receptors - 25kb
  • Table 4-4:  Modeled Deposition for Nitrogen and Sulfur - 21kb
  • Table 4-5:  Impacts on ANC of Sensitive Lakes - 15kb
  • Table 4-7:  Evaluation of Annual Concentrations HAPs - 23kb 
• Chapter 5: Review of Previous Studies - 22kb
• Chapter 6: References - 34kb