Dioxin Concentration of Particulate and Gaseous Substances in the Ambient Air by Particle Size : Comparison between Specimens Collected in Summer and in Winter at Tokyo
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概要
- 論文の詳細を見る
Size-fractionated air-borne particles and gaseous samples were collected using Andersen low pressure impactor with polyurethane foam at Tokyo. Dioxin concentrations of these particles and gaseous substances were measured with high resolution gas chromatograph/high resolution mass spectrometer (HRGC/HRMS). Particle diameter distribution has two peaks, one around 0.7 μm and the other around 5 μm both in summer and winter. But, dioxin has a peak at around the particle diameter of 0.52 μm. And, It was observed that smaller particle was the higher weight concentration of dioxins in the particle except in the case of tetrachlorodibenzofurans (TeCDFs). From these results, it was recognized that 75% or more of toxic dioxin component was contained in particles of 1 μm or smaller.
- 公益社団法人日本薬学会の論文
- 2004-02-01
著者
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Goto Sumio
National Institute for Environmental Studies
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GOTO Sumio
Azabu University
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SUGITA Kazutoshi
Dia Analysis Service Inc.
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Yajima Hirofumi
Science University Of Tokyo Faculty Of Science
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Ishii Tadahiro
Science University Of Tokyo Faculty Of Science
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Endo Osamu
National Institute Of Public Health
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Endo Osamu
Department Of Physics Faculty Of Technology Gunma University
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Goto S
College Of Environmental Health Azabu University
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Goto S
Reseacrh Center For Material Cycles And Waste Management National Institute For Environmental Studie
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Sugita Kazutoshi
Did Analysis Service Inc.
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Asada Shozo
Japan Quality Assurance Organization
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Sugita Kazutoshi
Analysis Div. Mitsubishi Chemical Analytech Co. Ltd.
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Endo Osamu
Department of Environmental Health, National Institute of Public Health
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