And what is the PEL for Nicotine Particulates?
OSHA safe level (PEL) for nicotine is 0.5 mg divided by ACS result 20 nanograms, which is also 0.000020 of a mg. Thus, 0.5 /0.00002 = 25,000 times safer than OSHA regulations.
You can find all that information in this post:
http://cleanairquality.blogspot.com/2004/04/american-cancer-society-test-results.html