What makes the rain smell so good?

The smell of the rain

Why does the rain smell so good?

A few weeks back I went walking in the Sooke Hills on the southern tip of Vancouver Island. It hadn’t rained for a number of days, but midway through the hike I began to feel raindrops tinkering on my sunhat. The smell was magnificent – earthy, organic and raw – but I didn’t know what was causing it.

Keen to determine the answer, I raced back home, slipped on some cosy clothes, made a hot chocolate and got to researching. The exquisite scent, it seemed had a similarly handsome name: petrichor.

Petrichor’s recipe

  • Plant oils – secreted by plants, these oils are released buoyantly into the air during a downpour
  • Bacteria chemicals – created by those hard-working bacteria in the planet’s precious soil systems, these chemicals are freed into the atmosphere as the first few raindrops hit the ground

Other aromas that inspire me to strap on my boots

  • Baking pine trees in the late summer sun
  • Honeysuckle in the spring
  • Autumn leaves on a riverbank
  • Mushrooms in the undergrowth
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Autumn leaves on the riverbank

Mushroom in the undergrowth

Mushroom in the undergrowth

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3 thoughts on “What makes the rain smell so good?

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