Smoke is harmful to lung health. Whether from
burning wood, tobacco or
marijuana, toxins and carcinogens are released from the
combustion of materials. Smoke from marijuana combustion has been shown to contain many of the same toxins, irritants and carcinogens as tobacco smoke
https://link.springer.com/chapter/10.1007/978-1-4684-0823-2_3As expected, the results showed qualitative similarities with some quantitative differences. In this study, ammonia was found in mainstream
marijuana smokeat levels up to 20-fold greater than that found in tobacco. Hydrogen cyanide, NO, NO x , and some aromatic amines were found in marijuana smoke at concentrations 3-5 times those found in tobacco smoke.
Mainstream marijuana smoke contained selected polycyclic aromatic hydrocarbons (PAHs) at concentrations lower than those found in mainstream tobacco smoke, while the reverse was the case for sidestream smoke, with PAHs present at higher concentrations in
marijuana smoke. The confirmation of the presence, in both mainstream and sidestream smoke of marijuana cigarettes, of known carcinogens and other chemicals implicated in respiratory diseases is important information for public health and communication of the risk related to exposure to such materials:
https://www.ncbi.nlm.nih.gov/pubmed/18062674 holy shit you're retarded.
not surprising you smoke weed. LOL