Size Distributions of Polycyclic Aromatic Hydrocarbons and Elemental Carbon. 1. Sampling, Measurement Methods, and Source Characterization
摘要：
Ten polycyclic aromatic hydrocarbons (PAHs) were measured in size-segregated aerosol samples of 0.05-4 μm diameter collected by a low-pressure impactor sampler using a high-resolution analysis procedure based on HPLC and fluorescence detection. This method can be used to characterize both vehicular emissions and ambient aerosol, allowing meaningful intercomparison. A field study was carried out at two traffic tunnels to characterize the vehicular source. PAH and elemental carbon (EC) size distributions measured in the Caldecott Tunnel were unimodal with over 85% of the mass in particles smaller than 0.12 μm aerodynamic diameter. -Authors
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DOI：
10.1021/es00053a005
被引量：
年份：
1994
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