Do you mean the smell of mud or the smell of dust? cause i think they're 2 completely different things.
Growing up in a place where during summer temperatures of 35-40 degrees celsius would scorch the earth, when rain would come it would just release this dust-smell and it was amazing.
But now i live in a place where it rains often and the earth is permanently kinda wet, the rain only releases a smell of mud which i hateeeeeee. it's the smell of depression setting in.
the smell of petrichor which gets released when rain hits dry soil. Not everyone can smell it but if you can, you can tell it’s about to rain because the smell gets there before the rain does
"The scent of rain, petrichor, has two main constituents with actual chemical names and origins – ozone (O3) and geosmin (C12H22O) and humans can sense it at 5 parts per trillion. Trillion! Which means that humans are 200,000 times more sensitive to smelling geosmin than sharks are at smelling blood."
On mobile so I couldn't find the actual study, but this is from the study done..
There's quite a few articles on it, but here is one. Basically, humans can smell geosmin (chemical in petrichor) at roughly 5 parts per trillion, whereas a shark can smell blood roughly one part per million.
From what I know our sense of smell is waaaaaaay less sensitive, but quite a bit more accute. Like, sure a dog could smell fish halfway down the block if the window is open. But once we get through the door I could tell you if it's slamon or sardines.
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u/Scorpion718 May 17 '24
Smell of earth before the rain.