Why does the air smell so sharp and clean after a thunderstorm?
In short: That distinct, refreshing scent following a heavy downpour isn't just wet earth. This video explores the chemical origins of post-rain aromas, specifically focusing on the pungent presence of ozone.
The perceived 'clean' scent often experienced after intense storms is driven by ozone, or trioxygen. This molecule consists of three oxygen atoms and carries a sharp, pungent odor that many people compare to the smell of chlorine.
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- Summary by Intellect · source: What Causes the Smell After Rain?
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