IMPROVED EVALUATION OF  POLYNUCLEAR HYDROCARBONS IN ATMOSPHERIC DUST BY GAS CHROMATOGRAPHY.
D000397:Air Pollution; D002845:Chromatography; D002849:Chromatography, Gas; D004391:Dust; D004864:Equipment and Supplies; D006838:Hydrocarbons; D012106:Research
D004391:Dust; D006838:Hydrocarbons
AIR POLLUTION; CHROMATOGRAPHY; EQUIPMENT AND SUPPLIES; EXPERIMENTAL LAB STUDY; HYDROCARBONS