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Source of Ozone(2007-1-4 21:49:32)

In A.D.1785 a German,Van Marum by name,found that there was aspecial smell of grass in the bracing air after thundershower the existence of ozone.Anozone(O) is formulated by combination kf an oxygen molecule.
(O2) with an oxygen atom (O) ,which is freed by ultraviolet radiation insunshine or produced by high voltage of lighting.Not until 1840,nevertheless,did a German chemist called Schonbein name it ozone in Egyptian word"OZONE"which means fresh air.Most ozone exists in the woods and on seashore,except for the tremendous quantity of it in the upper stratua of atmosphere warding off the ultraviolet rays.

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