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Visibility in Mandatory Federal Class I Areas, 1994-1998
A Report to Congress

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Image of Report Cover

Cover Page (PDF, 2 pp., 180KB)
Table of Contents (PDF, 16 pp., 84KB)
Front Pages (Abbreviations/Acronyms/Glossary of Terms) (PDF, 3 pp., 120KB)
Executive Summary (PDF, 6 pp., 256KB)
Chapter 1 - Introduction to Visibility Issues (PDF, 10 pp., 356KB)
Chapter 2 - Visibility in Individual Mandatory Federal Class I Areas (PDF, 171 pp., 3.5MB)
Chapter 3 - National and Regional Discussions of Visibility (PDF, 32 pp., 1.1MB)
Chapter 4 - References (PDF, 2 pp., 76KB)
Appendix A - List of 156 Mandatory Federal Class I Areas Where Visibility is an Important Value (PDF, 5 pp., 72KB)
Appendix B - Explanation of Method for Creating Summary Data from Raw IMPROVE Data (PDF, 2 pp., 64KB)
Appendix C - Methodology for Calculating Light Extinction from Monitored Aerosol Mass Data (PDF, 5 pp., 212KB)
Appendix D - Theil Method to Determine Statistically Significant Trends (PDF, 3 pp., 88KB)
Technical Report Data (PDF, 1 pp., 12KB)
List of Figures (downloads)

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