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ozone layer
(Encyclopedia) ozone layer or ozonosphere, region of the stratosphere containing relatively high concentrations of ozone, located at altitudes of 12–30 mi (19–48 km) above the earth's surface. Ozone…ozone
(Encyclopedia) ozoneozoneōˈzōn [key], an allotropic form of the chemical element oxygen (see allotropy). Pure ozone is an unstable, faintly bluish gas with a characteristic fresh, penetrating odor.…Montreal Protocol
(Encyclopedia) Montreal Protocol, officially the Protocol on Substances That Deplete the Ozone Layer, treaty signed on Sept. 16, 1987, at Montreal by 25 nations; 197 nations are now parties to the…chlorofluorocarbons
(Encyclopedia) chlorofluorocarbonschlorofluorocarbonsklōrˌəfl&oobreve;rˈəkärˌbənz, klôrˌ– [key] (CFCs), organic compounds that contain carbon, chlorine, and fluorine atoms. CFCs are highly…Crutzen, Paul Jozef
(Encyclopedia) Crutzen, Paul Jozef, 1933–2021, Dutch atmospheric chemist, grad. Univ. of Stockholm (Ph.D. 1968, D.Sc. 1973). After working (1977–80)…Rowland, Frank Sherwood
(Encyclopedia) Rowland, Frank Sherwood, 1927–2012, American chemist, b. Delaware, Ohio, Ph.D. Univ. of Chicago, 1952. Rowland taught at Princeton from 1952 to 1956 and at the Univ. of Kansas from…stratosphere
(Encyclopedia) stratospherestratospherestrătˈəsfēr [key], second lowest layer of the earth's atmosphere. The level from which it extends outward varies with latitude; it begins c.51&fslsh;2 mi (9…ozonosphere
(Encyclopedia) ozonosphere: see ozone layer.Molina, Mario
(Encyclopedia) Molina, Mario (Mario José Molina-Pasquel y Henríquez), 1943–2020, Mexican chemist, Ph.D. Univ. of California, Berkeley, 1972. Molina was a professor at the Univ. of California, Irvine…All About Ozone
Source: The Environmental Protection Agency I. The Ozone Layer…Trending
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