Document Detail

Modelling of wet deposition of atmospheric polycyclic aromatic hydrocarbons by the consecutive measurements in an urban area, Japan.
MedLine Citation:
PMID:  20962409     Owner:  NLM     Status:  MEDLINE    
The wet deposition for particulate matter (PM) and polycyclic aromatic hydrocarbons (PAHs) was modelled from the consecutive measurements of atmospheric concentration and wet deposition for particulate matter and PAHs in Higashi-Hiroshima city, Japan. In order to estimate the model in detail, the wet deposition was classified with that from gaseous and PM phase. The gaseous PAHs assumed to be dissolved into raindrops according to Henry's constant, and the PAHs attached on atmospheric PM were assumed to be trapped with PM. The PM was classified with coarse (>7 μm) and fine (0.6-7 μm) PM for the calculation of trap. PM and PAHs depositions estimated with the wet deposition model were compared with measured data. The ratios of the measured to the estimated values of PM and PAHs gave close agreement with measurements (0.41-4.29 (1.35: average) for PM and (0.32-3.83 (1.42)) for PAHs) regardless of precipitation. The depositions of PAHs of liquid and particulate phase were on the other hand significantly different from those from gaseous and PM phases respectively. From those differences, the transfer from particulate to liquid phase was suggested to occur during the precipitation.
Keisuke Kojima; Shinji Kobayashi; Tomonori Kindaichi; Noriatsu Ozaki
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Water science and technology : a journal of the International Association on Water Pollution Research     Volume:  62     ISSN:  0273-1223     ISO Abbreviation:  Water Sci. Technol.     Publication Date:  2010  
Date Detail:
Created Date:  2010-10-21     Completed Date:  2011-01-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9879497     Medline TA:  Water Sci Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1922-30     Citation Subset:  IM    
Department of Urban Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
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MeSH Terms
Air / analysis*,  standards
Air Pollutants / analysis*
Environmental Monitoring / methods*
Models, Theoretical*
Polycyclic Hydrocarbons, Aromatic / analysis*
Reproducibility of Results
Reg. No./Substance:
0/Air Pollutants; 0/Polycyclic Hydrocarbons, Aromatic

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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