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Loading...Tuesday 14 September 2021
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One of these odors, called "petrichor," lingers when rain falls after a prolonged dry spell. Petrichor — the term was coined in 1964 by two Australian scientists studying the smells of wet weather — is derived from a pair of chemical reactions. Some plants secrete oils during dry periods, and when it rains, these oils are released into the air.
The smell of nature after rain that will be very familiar to anyone who spends much time outdoors, indeed a typical Irish town will have that particular post pluviam odour caused by a mix of geosmin from gardens, parks and hedges and ozone from conrete and tarmac.
Loading...The way it smells after the rain is called petrichor.