ozone (O3)

Ozone (O3) is a gas composed of three oxygen atoms. It occurs naturally in the Earth's atmosphere, primarily in two layers. In the stratosphere, it forms the ozone layer, which protects life by absorbing harmful ultraviolet (UV) radiation from the sun. This layer helps prevent skin cancer and other health issues. However, at ground level, ozone is a pollutant that can harm human health and the environment, often forming from reactions between sunlight and pollutants from vehicles and industries. Managing ozone levels is essential for both ecological and public health.