Journal of Korean Society for Atmospheric Environment

Korean Society for Atmospheric Environment (한국대기환경학회)
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The Distribution Characteristics of Polychlorinated Biphenyls in Rural Atmosphere

  • Yeo, Hyun-Gu (Department of Environmental Engineering, Konkuk University) ;
  • Park, Minkyu (Department of Environmental Engineering, Konkuk University) ;
  • Chun, Man-Young (Department of Environmental Engineering, National Hankyong University) ;
  • Young Sunwoo (Department of Environmental Engineering, Konkuk University)
  • Published : 2002.09.01
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Abstract

Atmospheric concentrations of polychlorinated biphenyl (PCB) congeners were measured every two weeks from July, 1999 to January, 2000 at Hankyong University in Ansung, Kyounggi-do. Atmospheric concentrations of ∑$_{24}$PCB showed a range of 19.8～71.9 pg/m3. The highest concentration of PCB homolog was tri-CBs (sum of PCB 18, 27, 28, 33, 38) which had a comparatively higher vapor pressure than other homologs. The contribution ratio of lighter PCB homologs (tri-CBs) to total PCBs was 44.5%, and these homologs were the main components of PCBs. The ratio PCB homologs/deca-CB (PCB 209) suggested that the contribution of vapor phase PCBs increased greatly in summer relative to other seasons. In addition, the regression lines for PCB homologs/deca-CB (PCB 209) and temperature ($^{\circ}C$) appeared as an exponential function with high correlation (R2>0.67, p< 0.01). This suggests that the concentration of vapor phase PCB homologs increases steeply with increasing temperature.

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References

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