Do you ever step out the door, sniff the air and say, yep it's gonna rain today? Do you wonder why you know this? I'll tell you. It is called petrichor, and is often used to describe the scent of rain in the air. More specifically, it is an oil from the earth that is released into the air just before a rainfall.
It is a smell that most people are familiar with, whether or not they know why. It is suggested that we find this scent pleasing because we inherited our fondness for it from our ancestors who relied heavily on rain for their survival.
Right before a rain there is increased humidity which penetrates the rocks and soil and is just enough moisture to release the petrichor. This is even more evident when the rain actually begins to fall and the scent is carried on the wind. I notice this earthy fragrance most during an early Summer rain.
Check out this video to see how this happens.
If you enjoyed this post, please leave your calling card in the comment section or click the visitors box below to let me know you stopped by.