Abstract
Experiments were carried out between September 2009 and August 2010 at Bei-shi and Gao-mei in Taichung, and at Quan-xing, Chang-Hua and He-mei in Changhua. Dry-deposition flux models of metallic elements Mn, Fe, Zn, Cu and Cr bound to air particulates at five characteristic sampling sites were developed. Results concerning metallic elements Mn, Zn, Cr and Cu, revealed that Zhang’s model yielded the best results concerning the dry-deposition flux of particles of size 10 μm at Bei-shi, Chang-Hua, He-mei, Quan-xing and Gao-mei sampling sites. For the metallic element Cr, the model of Noll and Fang exhibited the best dry-deposition flux results for particles of size 10 μm at Bei-shi, He-mei and Gao-mei sampling sites. For metallic element Fe, the model of Noll and Fang yielded the best results for the dry-deposition flux of particles of size 5.6 μm at Bei-shi, Chang-Hua, He-mei and Quan-xing sampling sites. For metallic element Fe, Zhang’s model yielded the best dry-deposition flux results for particles of size 5.6 μm at the Gao-mei sampling site. For ambient air particles, Zhang’s model yielded the best average calculated/modeled ratios for particles of size 3 μm, and the model of Noll and Fang yielded the best average calculated/modeled for particles of size 10 μm. Finally, the models of both Zhang and Noll and Fang yielded more accurate predictions of the dry-deposition of metallic elements in ambient air when the particles were larger than 5.6 μm.
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The authors gratefully acknowledge the National Science Council of the ROC (Taiwan) for financial support under project No. NSC 99-2221-E-241-006-MY3.
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Fang, GC., Huang, CS. Monitoring and modeling concentration and dry deposition of ambient air particulates and metallic elements Mn, Fe, Zn, Cr and Cu in central Taiwan. Environ Earth Sci 69, 773–782 (2013). https://doi.org/10.1007/s12665-012-1960-0
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DOI: https://doi.org/10.1007/s12665-012-1960-0