Technical Data
You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.
Here you can find links to various technical resources related to the PM2.5 designations process.
- Responses to Comments on PM2.5 designations (PDF) (258 pp., 3.9 MB)
- Technical support document for December 17, 2004 designations
- Table of Contents (with Acronyms) (PDF) (3 pp, 56KB)
- Chapter 1: Introduction (with cover page) (PDF) (3 pp, 64KB)
- Chapter 2: EPA PM2.5 Nonattainment Designations (PDF) (24 pp., 148KB)
- Chapter 3: Urban Excess Methodology (PDF) (9 pp, 1.8MB)
- Chapter 4: Constructing the Weighted Emissions Score Metric (PDF) (3 pp, 64KB)
- Chapter 5: An Explanation of EPA's Nine-Factor Analysis (3 pp, 76KB)
- Chapter 6: Nine Factor Analyses of Individual Nonattainment Areas (PDF) (434 pp, 17.2MB)
- Chapter 7: Supporting Maps and Figures (PDF) (49 pp, 95.9MB)
- Appendix A: Partial County Boundaries (PDF) (8 pp, 44KB)
- Technology Transfer Network PM2.5 Designations Implementation Technical Information
- Technical support document for April 5, 2005 supplemental notice (PDF) (75 pp, 4.1MB)