Title: Apply appropriate models in the study of dry deposition fluxes of particulate matter and polycyclic aromatic hydrocarbons (PAHs) in Tsukuba, Japan

Authors: A.S. Shannigrahi, T. Fukushima, N. Ozaki, Wen-Jhy Lee, Guor-Cheng Fang, Yuh-Shen Wu

Addresses: Institute of Geoscience, 1-1-1 Tennoudai, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan. ' Institute of Geoscience, 1-1-1 Tennoudai, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan. ' Department of Civil and Environmental Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan. ' Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan, ROC. ' Air Toxic and Environmental Analysis Laboratory, Hungkuang University, Sha-Lu, Taichung 433, Taiwan. ' Air Toxic and Environmental Analysis Laboratory, Hungkuang University, Sha-Lu, Taichung 433, Taiwan

Abstract: In this study, plates for downward flux and upward flux were used to measure atmospheric dry deposition fluxes for particulate mass and polycyclic aromatic hydrocarbons (PAHs) in TERC (Tsukuba), Japan. Ambient particles concentrations were also collected using a high-volume air sampler, and ambient particle size distributions between 0.01 μm and 13.1 μm were measured using a low-pressure cascade impactor to characterise the PAHs levels and dry deposition. The results indicated that the average cumulative fraction of dry deposition flux for particles and PAHs which attached with them was caused by the particle size of greater than 1.2-6.3 μm (97%).

Keywords: polycyclic aromatic hydrocarbons; atmospheric deposition; deposition velocity; PAHs; modelling; dry deposition fluxes; particulate matter; Japan; air quality; air pollution.

DOI: 10.1504/IJEP.2009.024472

International Journal of Environment and Pollution, 2009 Vol.37 No.1, pp.70 - 85

Published online: 06 Apr 2009 *

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