대한환경공학회지 (Journal of Korean Society of Environmental Engineers)

  • 제28권8호
  • /
  • Pages.836-842
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  • 2006
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  • 1225-5025(pISSN)
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  • 2383-7810(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
권호 표지

소나무 잎을 이용한 대기 중 PCBs의 노출기간별 침착특성

Deposition Characteristics of Atmospheric PCBs Depending on Exposure Periods Using Pine Needles

  • 여현구 (중소기업청 기술지원과) ;
  • 조기철 (동남보건대학 환경생명과학과) ;
  • 최민규 (국립수산과학원 환경관리팀) ;
  • 김태욱 (한경대학교 환경공학과) ;
  • 천만영 (한경대학교 환경공학과)
  • Yeo, Hyun-Gu ;
  • Cho, Ki-Chul (Department of Environmental Science, Dongnam Health College) ;
  • Choi, Min-Kyu (Marine Environment Management Team, National Fisheries Research and Development Institute) ;
  • Kim, Tae-Wook (Environmental Research Center, Environmental Engineering, National Hankyong University) ;
  • Chun, Man-Young (Environmental Research Center, Environmental Engineering, National Hankyong University)
  • 발행 : 2006.08.31
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초록

서울과 안성에서 소나무 잎 1, 2, 3년생을 채취하여 대기 중 노출기간에 따른 침착특성을 조사하였다. 소나무 잎에 침착된 총 PCBs의 농도는 서울과 안성에서 각각 2,429, 1,198 pg/g dry weight(건조질량)이었다. 소나무 잎에 침착된 PCB homologs의 농도는 염소치환수가 증가할수록 감소하였는데 이는 고분자 PCBs일수록 대기 중에서 입자상 분율이 가스상에 비해 증가하여 식물에 침착되기가 어렵기 때문으로 판단된다. 소나무 잎에 노출된 기간과 총 PCBs의 농도와의 회귀분석 결과, 매우 유의한 결과($R^2>0.94$, p<0.01)를 나타내었는데 이는 대기에 노출되는 기간에 비례하여 소나무 잎에 PCBs가 선형적으로 누적침착 되고 있음을 알 수 있다. 결과적으로 여러 지역에서 노출기간별로 채취한 소나무 잎은 그 지역 대기 중 PCBs의 장기적인 침착 경향을 파악할 수 있는 passive air sampler로 사용가능 할 것으로 판단되었다.

Pine needle samples(1 year, 2 year, 3 year old) were collected in Seoul and Ansung to investigate the deposition characteristics of atmospheric PCBs depending on exposure periods. Total PCBs concentration of pine needle samples in Seoul and Ansung showed 2,429, 1,198 pg/g DW(dry weight), respectively. PCB homologs concentration of pine needle samples decreased with increasing chlorine-substituted compounds. It showed that higher chlorine- substituted compounds in existing particle phase compared to lower chlorine-substituted compounds existing in gaseous phase were difficult to accumulate lipids of the pine needles samples. The results of regression analysis between exposure periods in the atmosphere and concentration of total PCBs measured in pine needles at two sites showed significant levels($R^2>0.94$, p<0.01), which implies that atmospheric PCBs accumulated on pine needles with positive linearity depending on exposure periods in this study. Therefore pine needle samples can be used as passive air sampler(PAS) for monitoring air contamination for a long time in different sites.

키워드

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