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자료유형
학술저널
저자정보
저널정보
한국대기환경학회 한국대기환경학회지(영문) 한국대기환경학회지 제22권 제E1호
발행연도
2006.6
수록면
35 - 43 (9page)

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Ambient particle size distributions of PCBs and their dry deposition fluxes were measured at a site in Seoul to quantify dry deposition fluxes of PCBs and size characteristics of PCBs in the air, and to estimate ambient concentrations of gaseous PCBs and dry deposition fluxes. The dry deposition plate was used to measure dry deposition fluxes of particulate mass and PCBs and a cascade impactor and rotary impactor were used to measure ambient particle size distributions for small (D<SUB>p</SUB><9 ㎛) and large (D<SUB>p</SUB>>9 ㎛) particles, respectively. Six sample sets were collected from April to July 1999. The fluxes of particulate total PCBs (the sum of 43 congeners) ranged from 160 to 607 ng m?² day?¹. The size distribution of total PCBs was bimodal with two peaks in small particle size (D<SUB>p</SUB>~0.6 and 6 ㎛, respectively) and, thus, mass concentration being dominant in small particles. The mean particulate PCBs concentration was 6.9 ㎍ PCBs/g. The concentrations of PCB homologues in the gas phase were estimated based on the particle/gas partition coefficient(K<SUB>p</SUB>) with the measured values of particulate PCBs in this study and they were comparable to those observed in other previous studies. Dry deposition fluxes were estimated by calculating dry deposition velocities.

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Abstract
1. INTRODUCTION
2. EXPERIMENTAL METHODS
3. RESULTS AND DISCUSSION
4. SUMMARY
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2009-539-015648290