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Yikes. Cocaine is in the air.

  1. May 14, 2009 #1


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    That's getting pretty outre chic. So much pot smoking, cocaine and LSD that it shows up in air quality tests?
  2. jcsd
  3. May 14, 2009 #2


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    Staff: Mentor

    Well, the issue is half that and half air quality testers bragging about the sensitivity of their equipment. There was a similarly useless news story last year about poisons in the drinking water in many US cities.....measured in ppb.
  4. May 14, 2009 #3


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    On a similar 'note'
    http://i.livescience.com/images/080805-world-currency-02.jpg [Broken]
    Last edited by a moderator: May 4, 2017
  5. May 14, 2009 #4

    I've actually observed people licking their money before handing it to a cashier...sadly more than on one occasion.
    Last edited by a moderator: May 4, 2017
  6. May 14, 2009 #5
    You're kidding right?? That's disgusting. Safer than licking a strangers palm, but not much different.
  7. May 14, 2009 #6
    I wish I was kidding. Have you ever noticed "rolled up" bills...those are the ones they really want.
  8. May 14, 2009 #7
    Hahaha...right. Anyway, that's probably the most incomprehensible chart layout I've ever laid eyes on.
  9. May 15, 2009 #8
    I think this is more an indication of the sensitivity of mass spectrometers than anything else.

    The density of air is about 1.2 kg/m^3, so the range is 24 - 708 ppq ("parts per quadrillion").
  10. May 15, 2009 #9
    That's interesting. I wonder if our sensors would be powerful enough to hunt down a person in real time based on an electronic nose..well I guess dogs can do it. Hmm. I wonder why this kind of technology hasn't been made.
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