Low levels of ozone are typically recorded in the morning because industrial unit emissions, motor vehicle emissions, chemical reactions, and sunlight are lowest in the morning.
Morning ozone levels are normally low because the activity of ground-level ozone-producing sources such as industrial unit emissions, motor vehicle emissions, chemical reactions, and sunlight is lowest in the morning. Nitrogen oxide and volatile organic molecules are formed by the emission of these units. Ground-level ozone is created by the chemical interaction between nitrogen oxide with a volatile organic molecule in the presence of sunlight. The combination of low emission and low solar light creates an unfavorable environment for ozone production. As a result, the morning ozone level is lowered.
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