Particle size distribution of aerosol carbons in ambient air

摘要

The concentrations and size distributions of organic carbon (OC), elemental carbon (EC), and polycyclic aromatic hydrocarbons (PAHs) were measured with a PS-1 sampler, NRI (Noll Rotary Impactor), and MOUDIs (Micor-orifice Uniform Deposit Impactor) in the ambient air of the traffic Intersection and rural site in the Ping Tung area of Southern Taiwan, from September 1994 to December 1995. An elemental analyzer was used to analyze the carbon composition of the aerosol Samples. Twenty-one individual PAHs ere analyzed primarily by a gas chromatography/mass Spectrometer (BC/MS).