Jump to main content.


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 files listed below are in portable document format (pdf). In order to view these files, you must install Adobe Acrobat Reader onto your machine. You can obtain this freeware from the Adobe Homepage. Then, your browser should give you the option to either download and/or view these files. If you choose to view the files, you will have to tell your browser where on your hard drive the executable file for Acrobat Reader is located. If, after you view a file in Acrobat Reader, you decide you want to download the file to your hard drive, right click on the title of the chapter in your browser and choose the save as option.

Chapter 1 - Executive Summary (37 KB)

Chapter 2 - Air Quality Trends (1213 KB)

Chapter 3 - PAMS: Enhanced Ozone & Precursor Monitoring (69 KB)

Chapter 4 - Air Toxics (71 KB)

Chapter 5 - Nonattainment Areas (112 KB)

Chapter 6 - Metropolitan Area Trends (162 KB)

Appendix A - Data Tables (623 KB)

Appendix B - Methodology (378 KB)

Local Navigation

Jump to main content.