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The Characteristics of Element Components in PM 2.5
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서울과 대전지역 PM 2.5 중 원소성분의 농도 특성

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Type
Academic journal
Author
Journal
한국환경분석학회 환경분석과 독성보건 한국환경분석학회지 제18권 제1호 KCI Accredited Journals
Published
2015.1
Pages
49 - 58 (10page)

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The Characteristics of Element Components in PM 2.5
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Abstract· Keywords

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We collected PM 2.5 samples from sampling sites in Seoul and Daejeon metropolitan cities and analyzed elementalspecies in the samples to investigate the concentration distribution and seasonal characteristics of PM 2.5 . Also, emissions contribution was estimated by comparing composition of soils from Korea and elsewhere. Theaverage mass concentrations of PM 2.5 were 27.3 and 30.0 µg/m3in Seoul and Daejeon, respectively. The elementalcompositions were dominated by K, Ca, Fe. The total element components portion ranged from 4.3%to 7.2% in mass concentration of PM 2.5 . Enrichment factors(EF) for the elemental species were calculated toidentify emission sources of PM 2.5 . The PM 2.5 samples showed high Enrichment factors for V and Cr as wellas Br and Pb. Therefore, it is assumed that exhaust emissions from petroleum-base fuel combustion and oilcombustionsrelated to residental space heating have contributed significantly to PM 2.5 emissions in these cities. .

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