Anti-Pot Anti-Marijuana Public Service Announcement Video / PSA

Anti-Pot Anti-Marijuana Public Service Announcement Video.

How Wise Are Marijuana Smokers? / Anti-Marijuana PSA Video Public Service Annoucement from the public domain. Courtesy of http://www.abovetheinfluence.com Comparison of gaseous and particulate components of marijuana and tobacco smoke. MJ / Tobacco (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 m-p-Cresol (ug) 54.4 65 2.4- and 2.5- dimethylphenol (ug) 6.8 14.4 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. Chemicals in Marijuana Smoke May Harm DNA Lab tests find cannabis even more toxic than tobacco Posted June 19, 2009 FRIDAY, June 19 (HealthDay News) -- The smoke from cannabis, the plant from which marijuana is derived, contains compounds that can damage DNA and increase the risk of cancer just like tobacco smoke, says a new study from the United Kingdom. In laboratory tests, Rajinder Singh from the University of Leicester and colleagues found certain carcinogens in cannabis smoke in amounts 50 percent greater than those found in tobacco smoke. They noted that light cannabis use could possibly prove to be even more damaging because cannabis smokers usually inhale more deeply than cigarette smokers. "The smoking of three to four cannabis cigarettes a day is associated with the same degree of damage to bronchial mucus membranes as 20 or more tobacco cigarettes a day," the researchers noted in a news release from the university. The research was based on tests using a new highly sensitive liquid chromatography-tandem mass spectrometry method to analyze the cannabis smoke. It looked specifically at acetaldehyde -- a suspected cancer-causing chemical known to affect human DNA that is found in both kinds of smoke. "These results provide evidence for the DNA-damaging potential of cannabis smoke, implying that the consumption of cannabis cigarettes may be detrimental to human health with the possibility to initiate cancer development," the researchers concluded in their report, published in the June 15 issue of Chemical Research in Toxicology.

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