Particle and Aerosol Research Vol. 5, No. 4, December 2009 |
ISSN : 1738-8716 (Print) ISSN : 2287-8130 (Online) |
Characteristics of the dry deposition fluxes and ambient particl size distributions of PCBs: The measurements on fall, 1999
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Abstracts
The dry deposition fluxes of particulate polychlorinated biphenyls (PCBs) were measured along with their mass
size distributions at Seoul and Incheon in fall in 1999. The dry deposition fluxes of PCBs were in the range of 16.7~
62.2 ng/m2/day. The ambient concentrations of particulate PCBs were in the range of 0.07 to 0.20 ng/m3. Generally,
the mass size distribution of particulate PCBs shows bi-modal distribution. The mass fraction of PCBs in the fine
particle fraction (Dp⁄2.1 ¥ìm) was over than 55% of the total PCBs concentrations. It was found that Seoul and
Incheon were not the major source of PCBs emissions in Korea. Based on the comparison with the measurement
data in summer, 1999, it is likely that both the dry deposition fluxes and ambient particulate PCBs concentrations
were not site-specific.
Key words : PCBs, Dry deposition fluxes, Mass size distribution, Ambient concentration, Source
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