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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제19권 제2호
발행연도
2003.4
수록면
167 - 177 (11page)

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초록· 키워드

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The number size distribution of urban aerosols ranging from 0.02 to 20㎛ in diameter was measured by using a scanning mobility particle sizer(SMPS) system and an aerodynamic particle sizer spectrometer(APS) at Seoul from November 30, 2001 to January 14, 2002. The gaseous species such as NO, No, NO₂, and O₃ were also continuously monitored. Thd daily average concentration of urban aerosols sorted into three groups (0.02~0.1㎛, 0.1~1㎛, and 1~10㎛) and the typical number, surface, and volume distributions of urban aerosols were discussed in this paper. The weekly variation of aerosol concentration was compared with those of gaseous concentrations, relative humidity, and visibility. The results showes that the particle number concentration seemed to increase in the morning and the number concentration of fine particles less than 1㎛ in diameter seemed to increase when the concentrations of CO, NO, and NO₂ were high. The number concentration of fine particles was relatively high when the relative humidity was greater than 70% during the increasing period of relative humidity. The visibility was weakly correlated with the concentration of aerosols ranging 0.1 to 1㎛, and the number size distribution for high visibility episode was apparently different from that for low visibility episode.

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