Air Trends
September 2003 Report:
National Air Quality and Emissions Trends Report, 2003 Special Studies Edition
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- Cover Page (PDF) (2 pp, 1.2 MB)
- Front Pages (PDF) (10 pp, 425 KB)
- Chapter 1 - Executive Summary (PDF) (6 pp, 564 KB)
- Chapter 2 - Criteria Pollutants — National Trends
- Complete Chapter (PDF) (44 pp, 6.8 MB)
- Introduction (PDF) (2 pp, 434 KB)
- Criteria Pollutants (PDF) (39 pp, 6.8 MB)
- References (PDF) (1 pg, 423 KB)
- Chapter 3 - Criteria Pollutants - Metropolitan Area Trends (PDF) (8 pp, 475 KB)
- Chapter 4 Criteria Pollutants - Nonattainment Areas (PDF) (4 pp, 500 KB)
- Chapter 5 - Air Toxics (PDF) (2 pp, 447 KB)
- Chapter 6 - Special Studies
- Special Studies Summary (PDF) (6 pp, 750 KB)
- Impact of April 2001 Asian Dust Event on Particulate Matter Concentrations in the United States (PDF) (14 pp, 2.7 MB)
- Chemical Speciation of PM2.5 in Urban and Rural Areas (PDF) (12 pp, 959 KB)
- Trends in Monitored Concentrations of Carbon Monoxide (PDF) (10 pp, 489 KB)
- Cumulative Ozone Exceedances — A Measure of Current Year Ozone Levels Compared to Historical Trends (PDF) (22 pp, 571 KB)
- Characterization of National Spatial Variation (PDF) (6 pp, 1 MB)
- Development of a New Reporting Technique for Air Quality (PDF) (10 pp, 783 KB)
- Appendix A - Data Tables (PDF) (115 pp, 4.5 MB)
- Appendix B - Methodology (PDF) (6 pp, 610 KB)