After a string of warm and dry days, the ground starts to dry out. As clouds build in the atmosphere and a healthy downpour moves through, temperatures drop and a recognizable smell starts to fill the air. We typically refer to it as the smell of rain, but it is referred to as petrichor. The word is rooted in Greek mythology. The smell can be the most notable after periods of warm and dry weather.
This smell is the result of chemical compounds breaking down and being released up into the atmosphere as raindrops hit the ground. The bacteria released that we smell is called geosmin. It is an abundant bacteria that occurs naturally in the environment and has that earthy smell and taste. Geosmin is common in foods like root vegetables. The bacteria get caught and while in water droplets, they break apart and bounce off the Earth's surface into the air helping to release the smell.
The Link LonkMay 10, 2021 at 06:58AM
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May to be recognized as ‘Kansas Beef Month’ - KSN-TV
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