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Air pollution by ozone

This page was archived on 23 Nov 2023 with reason: Content is outdated
Ozone is a 'secondary' pollutant formed from gases such as nitrogen oxides and volatile organic compounds in the presence of solar light. Ozone levels typically become particularly high in regions where considerable emissions of these gases combine with stagnant meteorological conditions, high levels of solar radiation and high temperatures during the summer. Summer refers to the period from April to September.

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