| Modelling of wet deposition of atmospheric polycyclic aromatic hydrocarbons by the consecutive measurements in an urban area, Japan. | |
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MedLine Citation:
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PMID: 20962409 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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. |
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Authors:
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Keisuke Kojima; Shinji Kobayashi; Tomonori Kindaichi; Noriatsu Ozaki |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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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:
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Created Date: 2010-10-21 Completed Date: 2011-01-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9879497 Medline TA: Water Sci Technol Country: England |
Other Details:
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Languages: eng Pagination: 1922-30 Citation Subset: IM |
Affiliation:
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Department of Urban Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. kojima@env.t.u-tokyo.ac.jp |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Air
/
analysis*,
standards Air Pollutants / analysis* Environmental Monitoring / methods* Japan Models, Theoretical* Polycyclic Hydrocarbons, Aromatic / analysis* Reproducibility of Results Urbanization* |
| Chemical | |
Reg. No./Substance:
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0/Air Pollutants; 0/Polycyclic Hydrocarbons, Aromatic |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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