Atmospheric Chemistry of Toxic Contaminants. 6. Nitrosamines: Dialkyl Nitrosamines and Nitrosomorpholine

Detailed mechanisms are outlined for the reactions that contribute to in-sltu formation and atmospheric removal of dlmethylnitrosamine, diethylnitrosamlne, methyl-ethylnltrosamine, and nitrosomorphollne. In-sltu formation involves the rapid reaction of amines with the hydroxyl radical, leading to nltrosamlnes, nltramlnes, amides, and aldehydes. Nitrosamlne photolysis accounts for their rapid daytime removal, leading to amlno radicals whose atmospheric reactions are also discussed.