Question

How is ozone layer a pollutant?

Answer 1

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Ozone can also be found in the troposphere, the lowest layer of the atmosphere.

In the Earth's lower atmosphere, near ground level, ozone is formed when pollutants emitted by cars power plants industrial boilers refineries, chemical plants, and other sources react chemically in the presence of sunlight. Ozone at ground level is a harmful air pollutant.

Ozone production from NOx pollutants: Oxygen atoms freed from nitrogen dioxide by the action of sunlight attack oxygen molecules to make ozone. Nitrogen oxide can combine with ozone to reform nitrogen dioxide, and the cycle repeats.

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