In an effort to understand the effects of tobacco vs marijuana smoke on health, the chemistry of smoking plants, and remembering some of the chemistry I took in college, I came across a 2007 study comparing mainstream and sidestream marijuana and tobacco cigarette smoke, according to which:
a number of chemicals were present in marijuana smoke at levels that were substantially higher than in tobacco smoke. For example, NO, NO x , hydrogen cyanide, and aromatic amines were present in marijuana smoke at levels 3-5 times higher than in mainstream tobacco smoke, while ammonia was present at levels 20 times higher than tobacco. Conversely, some compounds such as PAHs, formaldehyde, and acetaldehyde were found at moderately higher levels in tobacco.
I have mostly understood the study but I do need some things clarified.
Question 1: Could the combustion of any plant material whether it is an edible herb or in my particular example, tobacco or marijuana, potentially produce similar products or by-products (e.g HCN, ammonia), because of the same functional groups present in the different compounds of the tobacco or marijuana plant?
Question 2: Would all of the molecules in the figure below which are found in the tobacco plant, be independently reacting with oxygen and what is the reaction of nicotine producing HCN and/or an aromatic amine which if I remember correctly is a cyclic molecule?