Ground-level Ozone (O3)
Ground-level ozone is a harmful air pollutant that forms when gases from cars, power plants, and other sources react with sunlight. Unlike the ozone layer high in the atmosphere that protects us from the sun, ground-level ozone is bad for breathing and can cause health problems, especially for people with lung conditions.
In the news
- Mumbai's Air Quality Worsens, Ranked Among Most Polluted Cities Ground-level ozone is a harmful air pollutant that forms when gases from cars, power plants, and other sources react with sunlight. Unlike the ozone layer high in the atmosphere that protects us from the sun, ground-level ozone is bad for breathing and can cause health problems, especially for people with lung conditions.