Simple substance with bactericidal effect formed in lightning weather

In the case of lightning, oxygen will be converted into ozone.

After a thunderstorm in summer, people will feel that the outdoor air is particularly fresh. First of all, of course, the cleaning effect brought by rain. Thunderstorms in summer are usually very violent. The heavy rainfall in a short time not only brought coolness, but also washed the dust floating in the air to the ground, making the air cleaner. Another reason is that thunderstorms are always mixed with lightning. When some oxygen molecules in the air are struck by lightning, they become ozone. Strong ozone stinks, but thin ozone with moderate concentration will give people a fresh feeling. After a thunderstorm, the air will be filled with a small amount of ozone, which will make people feel that the air has become fresh. This is the fresh feeling brought by ozone, and it will also make the air cleaner and more comfortable.