Basic Information on Stratospheric Ozone Depletion

The best starting point for basic information about ozone layer depletion is the 20 Questions and Answers about the Ozone Layer (PDF) (50 pp, 1.66M, About PDF) document prepared for the general public along with the 2006 Scientific Assessment of Ozone Depletion . This page also provides other sources of general information about the ozone layer and the how human activities can lead to its destruction:

Questions and Answers (brief): Answers to six basic questions about ozone depletion.
Ozone Science: The Facts Behind the Phaseout: Provides an overview of the ozone layer and more detail on how ozone depletion occurs.
The Ozone Depletion Process: A broad overview of how ozone depletion occurs.
Will the Ozone Layer Recover? Can We Make More Ozone?: A response to common questions about the ozone layer's recovery.
Ozone: Good Up High, Bad Nearby: Produced by EPA's Office of Air Quality Planning and Standards, this fact sheet explains the difference between stratospheric and tropospheric ozone.
Stratospheric Ozone Depletion: A Focus on EPA's Research: This brochure describes the mechanisms of and problems associated with stratospheric ozone depletion as well as some of the research projects pursued by EPA's Office of Research and Development (ORD).