Read a 1999 report that details the results of cooperative efforts to describe ground-level ozone concentration and transport in the border region of the eastern United States and Canada. View the U.S.-Canada Air Quality Agreement for related information.
You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Ground-Level Ozone: Occurrence and Transport in Eastern North America (PDF)(36 pp, 7 MB, March, 1999)