- Stratospheric Ozone: Located in the upper atmosphere (stratosphere), this layer of ozone protects life on Earth from harmful ultraviolet (UV) radiation from the sun. It acts like a shield, absorbing most of the UV rays before they reach the Earth's surface, preventing excessive sunburn, skin cancer, cataracts, and damage to plants and ecosystems.

Bad Ozone:

- Tropospheric Ozone: This is ground-level ozone, found in the lower atmosphere (troposphere). It is considered a harmful pollutant because:

- Smog Formation: Ozone is a primary component of smog and photochemical haze. In the presence of sunlight, it reacts with other pollutants emitted by vehicles, power plants, and industrial processes, forming a brownish smog that reduces visibility and negatively impacts human health and the environment.

- Respiratory Problems: High levels of ground-level ozone can cause respiratory problems, including asthma, bronchitis, emphysema, and lung irritation, particularly in vulnerable groups like children, the elderly, and those with respiratory conditions.

- Plant Damage: Ozone can harm sensitive plants by damaging their leaves, reducing their growth and agricultural yields, and making them more susceptible to pests and diseases.

Additionally, ozone can contribute to the greenhouse effect, trapping heat in the atmosphere and contributing to climate change.