Here are some USGS Web pages with more information on ozone layer and Anywhere:
Ozone in our air - friend or foe? - depends on where
Article on ozone layer and ozone as a pollutant from the weekly newsletter Volcano Watch (Hawaiian Volcano Observatory) for August 20, 2001.
(Score: 1.000)
Definition:
Region of the upper atmosphere, between about 15 and 30 kilometers (10 and 20 miles) in altitude, containing a relatively high concentration of ozone that absorbs solar ultraviolet radiation in a wavelength range not screened by other atmospheric components. [American Heritage Dic. of the English Language, 4th ed.]
