한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제18권2호
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  • Pages.95-112
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  • 2002
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  • 1598-7132(pISSN)
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  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
권호 표지

다양한 통계기법을 이용한 대전 1,2 공단지역의 미량금속원소의 특성 연구

A Study on the Characteristics of Airborne Trace Metal Elements using Diverse Statistical Approaches in the Daejeon 1st and 2nd Industrial Complex Area

  • 이진홍 (충남대학교 환경공학과 대기오염연구실) ;
  • 장미숙 (충남대학교 환경공학과 대기오염연구실) ;
  • 임종명 (충남대학교 환경공학과 대기오염연구실)
  • 발행 : 2002.04.01
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초록

A precision analysis was conducted for the quantification of trace metal levels in airborne particulates using ICP-MS. According to our study the quantitative analysis using Whatman grade 41 filters produces more precise and representative values of metal concentrations than that using EPM 2000 filters. The mean concentration of PM 10 analyzed during 1998 ~ 2000 was 82 $\mu$g/m$^3$. The concentrations of human carcinogens such as As and Cr were 8.65 and 25.87 ng/m$^3$, respectively, while those of probable human carcinogens such as Cd and Pb were 3.13 and 219.46 ng/m$^3$, respectively. Time-weighted mean concentration, calculated using surface wind speed and direction, indicated that there were differences between metals of crustal origin and metals of anthropogenic origin. The rectorial concentrations of anthropogenic metals and PM 10 were higher for north -west sector with calm or low wind speed conditions than for any other sector with high wind speed conditions. On the contrary, the rectorial concentrations of crustal metals were high with high wind speed. In addition, the sectorial concentrations of crustal metals were more affected by south-west wind directions, which were compared with those of anthropogenic metals. The enrichment factor (EF) values of many anthropogenic metals were higher than 50, while those of crustal metals were lower than 3, respectively. The concentrations of Cr and Ni in Daejeon industrial complex area were 11 times higher than those in the background site of Kuopio in Finland, while that of Pb in the complex area was 22 times higher, respectively.

키워드

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