[A method for determination of tar polycyclic hydrocarbons in the air].
D000397:Air Pollution / Q000737:chemistry*; D006838:Hydrocarbons / Q000737:chemistry*; D011083:Polycyclic Compounds
D006838:Hydrocarbons; D011083:Polycyclic Compounds
AIR POLLUTION/chemistry; HYDROCARBONS/chemistry