Ozone is a molecule that consists of three oxygen atoms (O3). It is a naturally occurring gas that is present in the Earth’s atmosphere, particularly in the stratosphere, where it plays a critical role in protecting life on Earth by absorbing harmful ultraviolet radiation from the sun.

Ozone is also used in various industrial and commercial applications due to its strong oxidizing properties. It is a powerful disinfectant and is commonly used in water treatment and air purification systems to remove impurities and eliminate odors.

However, while ozone has many beneficial uses, it can also be harmful to human health if present in high concentrations. Exposure to high levels of ozone can cause respiratory problems and other health issues, particularly for those with pre-existing respiratory conditions or weakened immune systems.

It is important to note that ozones are not the same thing as smog, which is a mixture of pollutants that can also cause health problems. While ozone is a component of smog, it is not the primary cause of smog-related health issues.