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자료유형
학술저널
저자정보
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제21권 제1호
발행연도
2005.2
수록면
131 - 140 (10page)

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초록· 키워드

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To investigate secondary carbonaceous species within PM_(10) and PM_(2.5) in Seoul urban Metropolitan Area (SMA), Korea, atmospheric particulate matters samples were collected at two sites of SMA at UOS (The University Of Seoul station) sites and IHU (InHa University of Incheon station) during the period of 4 to 14 January and 12 to 22 May, 11 to 15 August 2004, and their characteristics were qualitatively discussed. during January and May and August of 2004.
Daily average mass concentration 0.095 mg/m₃ in PM_(10) and 0.053 mg/m₃ in PM_(2.5) for mass respectively, were observed in SMA. The concentrations of carbonaceous species contributed 18.4% and 16.4% of PM_(2.5) and PM_(10) during the sampling period, respectively, of which OC accounted for 68% and 52% more of the total carbon (TC). OC and EC concentrations and their mass percentages were higher in PM_(2.5) than in PM_(10), which could be attributed to generation process. Organic aerosols would constitute up to 38% of PM_(2.5) based on the evaluation of 1.6 for the ratio of OC to organic particulate. Secondary organic carbon (SOC) were estimated to be more than 13% and up to 68% of total OC based on the minimum OC/EC ratio of 1.06/1.11 using least square method. Comparisons of OC and EC with trace elements.
As results of carbonaceous species analysis, the dominant factor in view of fine particle (PM_(10)/PM_(2.5)) is primary emission source such as mobile, fossil fuel combustion etc. during winter time in SMA. But in summer periods, remarkable fine particle increasing factor was secondary organic carbon dependent to photochemical reaction.

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Abstract

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2. 측정 개요

3. 결과 및 고찰

4. 결 론

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UCI(KEPA) : I410-ECN-0101-2009-539-014469893