Rain's unique musky smell is mainly caused by bacteria.

Rain's musky smell, a beloved spring sensation, is created by various sources. The primary cause is bacteria released from the soil by raindrops, also familiar to gardeners who dig in the soil. The soil's diverse bacteria create a complex smell that factories struggle to replicate, despite their efforts. Ozone released during lightning strikes further contributes to the distinct rain smell, despite its odorless nature.

April 20, 2024
9 Articles

Further Reading