PPM and air volumes

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  1. hannah1994's Avatar
    1 16-05-2012  12:47
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    PPM and air volumes
    In 1dm3 of air what is the volume of methane present?
    Given that concentration (by Volume) of methane is 1.8ppm

    The answer is 0.0018cm3
  2. EierVonSatan's Avatar
    2 16-05-2012  16:03
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    • TSR Royalty
    • Location: UK
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    Re: PPM and air volumes
    1 ppm = 1/1000000

    that make sense now?
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