> B[a]P: Benzo[a]pyrene Benzo[a]pyrene is a product of incomplete combustion and is basically found wherever organic stuff (in the carbon containing sense) is

> B[a]P: Benzo[a]pyrene Benzo[a]pyrene is a product of incomplete combustion and is basically found wherever organic stuff (in the carbon containing sense) is burned with low available oxygen. It's super carcinogenic by way of intercalating between DNA basepairs leading to misread transcripts. Since nothing is being burned in a vaporizer unless something has horribly gone wrong, this is highly unlikely to be present in vapor. > NNK: 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone > NNN: N-Nitrosonicotine These are nitrated derivatives of nicotine. If they were in the eliquid, it's likely due to impurities in the nicotine. However, it's been previously shown [1] that they're not present in vapor in any significant quantity. [1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4555263/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4555263/