title: N-nitroso compounds: evidence for their presence in airborne particles.
abstract: Chemical, infrared, and thermal energy analyses have provided evidence for the presence of the N-nitroso functional group in extracts of airborne particles. The total molar N-nitroso concentrations in New York City air are equivalent to the total concentrations of polycyclic aromatic hydrocarbons. Since 90 percent of the N-nitroso compounds that have been tested are carcinogens, the newly discovered but untested materials may represent a significant environmental hazard.
mesh_terms: D000393:Air Pollutants; D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D003124:Colorimetry; D006358:Hot Temperature; D009519:New York City; D009603:Nitroso Compounds / Q000032:analysis*; D013055:Spectrophotometry, Infrared
chemical_list: D000393:Air Pollutants; D009603:Nitroso Compounds