title: Polycyclic aromatic hydrocarbons from gasoline-engine and liquefied petroleum gas engine exhausts.
mesh_terms: D002845:Chromatography; D006838:Hydrocarbons / Q000032:analysis*; D008722:Methods; D010578:Petroleum; D011083:Polycyclic Compounds / Q000032:analysis*; D013053:Spectrophotometry; D001335:Vehicle Emissions / Q000032:analysis*
chemical_list: D006838:Hydrocarbons; D010578:Petroleum; D011083:Polycyclic Compounds; D001335:Vehicle Emissions