| STUDY ON ATMOSPHERIC BEHAVIOR OF
POLYCYCLIC AROMATIC HYDROCARBONS IN
URBAN AREA, JEONJU |
| Hyoung-Seop Kim1, Jong-Guk Kim2, and Kyoung-Soo Kim3† |
1Technology Research Center, Korea Environment & Resources Corporation Kyungseo-dong, Seo-gu, Incheon, 404-170, Korea
2Center for Chemical Safety Management, Chonbuk National University, 664-14, Duckjin-dong, Chonju, 561-756, Korea
3Department of Environmental Engineering, Cheongju University, 36 Naeduck-dong, Sangdang-gu Cheongju, Chungbuk, 360-764, Korea |
Corresponding Author:
Kyoung-Soo Kim ,Tel: +82-43-229-8577, Fax: +82-43-229-8569, Email: kkyoungsoo@cju.ac.kr
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Received: May 18, 2007; Accepted: June 19, 2007. |
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| ABSTRACT |
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Between June and November 2002, the atmospheric concentrations and dry deposition fluxes of
polycyclic aromatic hydrocarbons (PAHs) in Chonju were measured four times each over five days. The
total concentration of PAHs in ambient air was 84 ng/m3, with about 90% existing in the vapor phase.
Plots of log (Kp) vs. log (PL
o) indicated that PAHs partitioning was not in equilibrium and the particulate
characteristics did not change with seasonal variations. The PAHs fluxes to a water surface sampler (WSS)
and a dry deposition plate (DDP) were about 14.15 and 1.92 ㎍/m2/d, respectively. The flux of the gaseous
phase, acquired by subtracting the DDP from the WSS results, was about 12.23 ㎍/m2/d. A considerable
correlation was shown between the atmospheric concentrations and deposition fluxes in the gaseous phase,
but not in the particulate phase, as the fluxes of the particulate phase were dependent on the physical
velocity differences of the particulates based on the particle diameter. |
| Keywords:
Deposition flux | Gas/Particle partitioning | PAHs | Size-distribution |
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