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Particle Size and Range

adifrank
in Biology

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I hope I'm asking this question in the right forum. If not, please redirect me.

 

Anyway, my question is: when we smell aromatic cedar, what is the size range in microns of the particle(s) that are actually physiologically interacting with our systems?

 

.... Don't ask why I need to know.

 

Thanks for your help!!

The active component of cedar's odor is an aromatic essential oil called lignen, I believe - a medium sized molecule

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