대한환경공학회지 (Journal of Korean Society of Environmental Engineers)

  • 제28권8호
  • /
  • Pages.829-835
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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 잎 중 PBDEs의 조성, 발생원 및 지역적 농도

Composition, Source, and Regional Concentration of PBDEs in Pine Needles

  • 여현구 (강원지방 중소기업청 기술지원과) ;
  • 조기철 (동남보건대학 환경생명과학과) ;
  • 천만영 (한경대학교 환경공학과)
  • Yeo, Hyun-Gu (Technical Support Department, Gangwon Regional Small and Medium Business Administration) ;
  • Cho, Ki-Chul (Department of Environmental Science, Dongnam Health College) ;
  • Chun, Man-Young (Environmental Research Center, Environmental Engineering, National Hankyong University)
  • 발행 : 2006.08.31
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초록

PBDEs의 조성, 발생원 및 지역적 농도 분포를 확인하기 위해 국내의 여러지역(서울, 안성, 청주, 울산, 대구, 부산, 파도리)에서 자생하는 소나무 잎을 채취하였다. Hepta-BDE부터 deca-BDE까지의 동족체(homologs) 농도는 총 PBDEs의 농도와 매우 유의한 상관성(Pearson 상관계수 r>0.96, p<0.001)을 보였다. Deca-BDE는 다른 homologs에 비해 모든 시료에서 최대농도를 나타내었다. PBDE 함유 제품(Bromkal 70-5DE, DE-71)과 소나무 중 침착된 PBDE 동질체(congeners) 사이의 상관성이 높게 나타나 PBDE 함유 제품이 본 채취지점에서 발생원으로 평가되었다. 또한 BDE-47, -99, -100, -206, -207 및 -209는 모든 소나무 잎에서 주된 성분을 나타내었는데 이는 전세계적으로 다량 사용된 penta-BDE와 deca-BDE 함유 제품이 국내에도 다량으로 사용되었기 때문으로 판단된다. 그러나 BDE-209와 BDE-47, -99, -100간의 상관성은 유의하지 않았는데 이는 tetra-BDE와 penta-BDE는 대기-토양 분배와 같은 2차 발생원에 영향이 지배적인 반면 deca-BDE는 여전히 1차 발생원의 영향이 2차 발생원의 영향보다 지배적이었기 때문으로 판단된다.

The composition, source, and regional concentration of polybrominated diphenyl ethers(PBDEs) were measured in pine needles with several sites in Korea. Homologs specific analysis confirmed that hepta-BDE(bromodiphenyl ethers) through deca-BDE were predictive indicator for total PBDEs concentration(Pearson's correlation coefficient r>0.96, p<0.001). Deca-BDE were detected in relatively very high concentration compared to other PBDE congeners in all samples. The similarity of between congeners profile to those of Bromkal 70-5DE and DE-71, the commercial mixture of PBDEs, indicates these mixtures are source of PBDEs observed in these sites. Also, BDE-47, -99, -100, -206, -207, and -209 were the dominant congeners in all samples, suggesting that the widely used commercial penta- and deca-BDE technical mixture were the original sources. However, Pearson's correlation coefficients of between BDE-209 and BDE-47, -99, -100 were insignificant, which implied that tetra-BDE and penta-BDE may originate from secondary sources such as air-plant partition in manner similar to that of the PCBs, while deca-BDE formulation still has primary sources.

키워드

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