The Naked Scientists

The Naked Scientists Forum

Author Topic: Why does some rain smell, but not others?  (Read 6169 times)

Offline thedoc

  • Forum Admin
  • Administrator
  • Sr. Member
  • *****
  • Posts: 511
  • Thanked: 12 times
    • View Profile
Why does some rain smell, but not others?
« on: 20/05/2015 11:57:24 »
As it has been so sunny recently, we will inevitably have rain to ruin this lovely sunshine. What I have been wondering is why does some rain have a certain smell and some rain doesn't, and what is it that is giving the rain its smell?
Asked by Tom Costema


                                        Visit the webpage for the podcast in which this question is answered.

 ...or Listen to the Answer or [download as MP3]

« Last Edit: 20/05/2015 11:57:24 by _system »


 

Offline RD

  • Neilep Level Member
  • ******
  • Posts: 8134
  • Thanked: 53 times
    • View Profile
Why does some rain smell?
« Reply #1 on: 08/07/2010 01:35:00 »
The smell is from bacteria in the soil ... http://en.wikipedia.org/wiki/Geosmin

So if there is no soil nearby there is no smell.

« Last Edit: 14/07/2010 14:10:36 by RD »
 

Offline chris

  • Neilep Level Member
  • ******
  • Posts: 5339
  • Thanked: 65 times
  • The Naked Scientist
    • View Profile
    • The Naked Scientists
Why does some rain smell?
« Reply #2 on: 14/07/2010 08:52:00 »
I answered this question regarding the smell of soil after it rains in this thread last year:

http://www.thenakedscientists.com/forum/index.php?topic=5359.msg258229#msg258229

Chris
 

Offline tangoblue

  • Sr. Member
  • ****
  • Posts: 301
  • RANDOMNESS RULES!!!
    • View Profile
Why does some rain smell?
« Reply #3 on: 20/07/2010 03:49:48 »
WHY WOULD ANYONE SMELL SOIL! lol i just got a mental image of someone on their knees smelling soil... random.
 

Offline Mr. F

  • Jr. Member
  • **
  • Posts: 11
    • View Profile
Why does some rain smell?
« Reply #4 on: 18/08/2010 15:22:12 »
The smell is from bacteria in the soil ... newbielink:http://en.wikipedia.org/wiki/Geosmin [nonactive]

So if there is no soil nearby there is no smell.



But Bacteria can live in clouds and act as seeding agents so because there is no soil nearby does not necessary mean there isn't going to be a smell.
 

Offline Variola

  • Neilep Level Member
  • ******
  • Posts: 1063
  • Everyone should beware of The Pox...
    • View Profile
Why does some rain smell?
« Reply #5 on: 18/08/2010 15:26:28 »
You would be hard pushed to find anywhere on land there is no soil whatsoever!
Geosmin travels for miles and we are particularly good at detecting it.

And my lab stinks of it!!
 

Offline tommya300

  • Hero Member
  • *****
  • Posts: 655
    • View Profile
Why does some rain smell?
« Reply #6 on: 19/08/2010 04:43:04 »
« Last Edit: 19/08/2010 04:58:13 by tommya300 »
 

The Naked Scientists Forum

Why does some rain smell?
« Reply #6 on: 19/08/2010 04:43:04 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums