answersLogoWhite

0

Ozone (O3) Ozone (O3 ) is the main ingredient of modern smog. Ozone irritates the lungs, causing coughing and chest pain. It also stings the eyes, nose and throat. People with lung diseases are particularly at risk, but up to a third of normal healthy people may develop symptoms when they exercise outdoors. This can lead to a decrease in their athletic performance.

User Avatar

Wiki User

16y ago

What else can I help you with?