Why does it smell so good after it rains? Meet petrichor
Mark WillardRob Shackelford
ByMark WillardandRob Shackelford
2 days agoUpdated: September 22, 2026, 5:49 am EDTPublished: September 22, 2026, 8:00 pm EDT

Ever notice a pleasant smell after rain showers? It's called petrichor, and it is actually the product of three separate smells. Ozone, plant oils and soil bacteria are the culprits.

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