Abstract
The main purpose of this study was to monitor ambient air particulates and metallic pollutants (Cu, Cd, Cr, Pb and Zn) concentrations, dry deposition during day and nighttime sampling periods at a traffic sampling site during 2012 March to 2013 February, In addition, four ambient air dry deposition models (Wood's, Petroff & Zhang, Baklanov and Noll & Fang) were also used to evaluate the ambient air dry deposition pollutants differences between monitored and modeling results. The result indicated that: 1) Petroff & Zhang's model exhibited better performances for the ambient air particles dry deposition predictions at the particles sizes of 10 μm, 20 μm, 23 μm than those of the other dry deposition models for both day and nighttime sampling periods: 2) Noll & Fang, Woods, and Petroff & Zhang's models exhibited best dry deposition prediction results for both day and nighttime sampling periods for metallic element Zn at the particles sizes of 10 μm, 20 μm at this traffic sampling site. However, metallic elements Cu and Cr have the least dry deposition predictions results for all the models mentioned in this study at the particles size of 23 μm for both day and nighttime sampling periods.
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