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How is ozone formed in the atmosphere?

April 26, 2017atmosphere formed ozone

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How is ozone formed in the atmosphere?

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Ozone is formed throughout the atmosphere in multistep chemical processes that require sunlight. In the stratosphere, the process begins with the breaking apart of an oxygen molecule (O2 ) by ultraviolet radiation from the Sun. In the lower atmosphere (troposphere), ozone is formed in a different set of chemical reactions involving hydrocarbons and nitrogen-containing gases.