Traditional Culture Encyclopedia - Weather inquiry - Why is the air fresh after the sultry weather before the thunderstorm?

Why is the air fresh after the sultry weather before the thunderstorm?

The ground was hot and humid, and a heavy rain drove away all the hot air and washed away most of the dust in the air.

In addition, when lightning strikes, ozone with strong oxidizing power is produced in the air, which can bleach and sterilize things, giving people a fresh feeling.

There is also a strong contrast between the rainy season and the rainy season in spring and summer.