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Table of Contents

Note: EPA no longer updates this information, but it may be useful as a reference or resource.

Please see www.epa.gov/airtrends for the latest information on Air Quality Trends.

The following list indicates the contents of the National Air Quality and Emissions Trends Report.

Download and/or view any of these chapters.


Chapter 1 - Executive Summary
Chapter 2 - Air Quality Trends
Carbon Monoxide (CO)
Lead (Pb)
Nitrogen Dioxide (NO2)
Ozone (O3)
Particulate Matter (PM-10)
Sulfur Dioxide (SO2)
Chapter 3 - PAMS: Enhanced Ozone & Precursor Monitoring
Chapter 4 - Air Toxics
The Air Toxics Program
Air Toxics Regulation and Implementation Status
Chapter 5 - Nonattainment Areas
Chapter 6 - Metropolitan Area Trends
Metropolitan Statistical Area Trends Analysis
The Pollutant Standards Index
Summary of PSI Analyses
Appendix A - Data Tables
Appendix B - Methodology

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