Tropospheric ozone

Definition

Tropospheric ozone refers to ozone present in the lower part of Earth's atmosphere known as the troposphere. It is formed when pollutants like nitrogen oxides (NOx) and volatile organic compounds (VOCs) react with sunlight.

Related terms

Stratospheric ozone: Stratospheric ozone refers to the layer of ozone located in the stratosphere which helps protect life on Earth by absorbing most of the sun's harmful ultraviolet (UV) radiation.

Photochemical smog:

Photochemical smog is a type of air pollution that occurs when sunlight reacts with pollutants like nitrogen oxides and volatile organic compounds in the atmosphere. It can cause respiratory problems and reduce visibility.

Ozone depletion: Ozone depletion refers to the thinning of the stratospheric ozone layer, primarily caused by human-made substances called ozone-depleting substances (ODS). This depletion increases the amount of harmful UV radiation reaching Earth's surface.