The term "petrikor" was coined during the study of this smell in 1964 by scientists Roderick Thomas and Isabella Bear. The word “petrikor” has Greek roots: “petra” means “stone” and “chor” means water.
What is the reason for the pleasant aroma that occurs when rain falls on the ground? During the dry period, plants constantly emit all kinds of oils that are absorbed into the ground and rocks. When rain falls on the ground, water gets into micro cracks and pores. The air in them forms bubbles on a wet surface, which, bursting, throw a lot of microdroplets into the air. These tiny particles, containing oils of vegetable origin, are picked up by the air currents and carried around, creating the very unique and beloved by many aroma.
What's your favorite smell?