From: glen@zeus.opt-sci.arizona.edu (Glen Sonnenberg)

Comparison of gaseous and particulate components of marijuana and tobacco smoke.

MJTobacco
Gas Phase Analysis
Carbon Monoxide (Vol %) 3.99 4.58
Carbon Monoxide (mg) 17.6 20.2
Carbon Dioxide (Vol %) 8.27 9.38
Carbon Dioxide (mg) 57.3 65.0
Ammonia (ug) 228 178
HCN (ug) 532 498
Isoprene (ug) 83 310
Acetaldehyde (ug) 1200 980
Acetone (ug) 443 578
Acetonitrile (ug) 92 85
Benzene (ug) 76 67
Toluene (ug) 112 108
Dimethylnitrosamine (ng) 75 84
Methylethylnitrosamine (ng) 27 30
Particulate Matter Analysis
Phenol (ug) 76.8 138.5
o-Cresol (ug) 76.8 24
17.9 24
m-p-Cresol (ug) 54.4 65
2.4- and 2.5- dimethylphenol (ug) 6.8 14.4
Cannabidiol (ug) 190
delta-9 THC (ug) 820
Nicotine (ug) 2850
Naphthalene (ng) 3000 1200
1-methylnaphthalene 6100 3650
2-methylnaphthalene 3600 1400
Benzo(a)anthracene (ng) 75 43
Benzo(a)pyrene (ng) 31 22.1

Just an interesting comparison of the two types of cigarettes. I don't know the exact amounts that were tested but they look remarkably similar. The information here came from an chapter in A Primer of Drug Action. Another very informative book about MJ is Drugs and Behavior an Introduction to Behavioral Pharmacology. Both of these books provide an interesting discussion of the history and effects of MJ.


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