by Wm. Robert Johnston
last updated 26 December 2002
Description: The lines show daily average ozone for these regions:
Comments: The period covered by these measurements (6 years) is too short to show long term trends, but this data does show seasonal and short-term variation.
Source: NASA TOMS, on line.
© 2001, 2002 by Wm. Robert Johnston.
Last modified 26 December 2002.
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