In Houston, the distinct scent that precedes rain is no longer just a familiar smell, but a scientifically named phenomenon called Petrichor. This unique aroma is caused by increased moisture in the air that releases oils and aerosols from plants, rocks, and other natural surfaces. When the raindrops finally hit the ground, they land on tiny air bubbles containing dust, bacteria, or soil particles, causing these particles to shoot up into the air and create the familiar scent.
Before rain arrives, humidity rises and causes oils and aerosols to be released into the air from plants, rocks, and other natural surfaces. When the raindrops finally hit the ground, they land on tiny air bubbles containing dust, bacteria