Ozone column at five U.S. sites, 1964-1998

by Wm. Robert Johnston
last updated 26 December 2002

Ozone column measurements, annual averages, US sites

Description: This is data from five U.S. sites (including the average of the five sites) as follows:

Comments: The graph indicates the following:


© 2001, 2002 by Wm. Robert Johnston.
Last modified 26 December 2002.
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