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Related to ozone: ozone hole, Ozone generator, Ozone therapy

O

Fifth letter of a Nasdaq stock symbol specifying that it is the company's second class of preferred shares.
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References in periodicals archive ?
OMPS Limb looks sideways, and it can measure ozone as a function of height," said Pawan K.
Levels of most ozone-depleting chemicals in the atmosphere have been gradually declining since an international treaty to protect the ozone layer, the 1987 Montreal Protocol, was signed.
Ground level ozone is created through tailpipe exhaust, gasoline vapors, industrial emissions and chemical solvents.
The continued threat to the ozone layer can be explained in both political and scientific terms.
One of these terpenes is pinene, which gives pine trees their pleasant smell; terpenes also react with oxygen and ozone to form a bluish haze in forested areas.
DOE, under Happer's direction, developed an Ozone Project to build an improved network for measuring UV-B at ground level.
When you expose an apple to ozone, bacteria on the fruit's surface will begin absorbing ozone molecules immediately," Rodrick said.
Levels of most ozone-depleting chemicals in the atmosphere have been gradually declining as the result of the 1987 Montreal Protocol, an international treaty to protect the ozone layer.
Meanwhile, last year the San Joaquin Valley had the most days - 82 - exceeding the nation's new ozone limit, which measures ozone levels over eight hours and is designed to protect against health problems associated with breathing low levels of ozone over a long period of time.
Ozone molecules are Earth's "natural sunscreen," says Paul A.
While one study calls for continued deterioration for several more decades, the Scientific Assessment of Ozone Depletion 1998, released by the World Meteorological Organization and the United Nations Environment Programme (UNEP), predicts that by 2050 the ozone layer will return to the condition it was in before 1970, when freon was first used.
The S-EB-S TPE films have no unsaturated polymer-chain bonds that can be attacked by ozone or ultraviolet light (refs.