A Study on the Size of Ultrafine Particles and Heavy Metal Concentrations in the Atmosphere

Title & Authors
A Study on the Size of Ultrafine Particles and Heavy Metal Concentrations in the Atmosphere
Cho, Tea-Jin; Jeon, Hye-Li; Youn, Hyung-Sun; Lee, Mi-Young; Son, Bu-Soon;

Abstract
This study evaluated the distribution of the concentrations of nano-particles and heavy metals (08-Pb, Cr, Zn, As, Fe, 09-Pb, Cr, Zn, Cu, Ni, Mn) in Seoul, Chungnam A and Gwangyang from August to December, in 2008 5 times each in the Seoul area, 5 times in and Chungnam A area and from August to November, in 2009 14 times in the Chungnam A area, 8 times in the Gwangyang area. The examined results showed high concentration level from $\small{PM_1}$ through $\small{PM_{0.1}}$ in all three areas. These results were obtained the concentration of particles by diameter and statistically significant in Stage5 (1.0-0.56 $\small{{\mu}m}$) from the result of conducting Kruskal-Wallis H test (p < 0.05). In the case of the heavy metal concentration included in 0.10-0.056 $\small{{\mu}m}$, 0.056 $\small{{\mu}m}$, the lead concentration of Chungnam Asan area was 6.49 ng/$\small{m^3}$ and 9.93 ng/$\small{m^3}$, which was higher than 3.05 ng/$\small{m^3}$ and 4.22 ng/$\small{m^3}$ of Seoul, respectively. The concentration of iron in Seoul was 9.28 ng/$\small{m^3}$ and 13.24 ng/$\small{m^3}$, that appeared higher than 2.38 ng/$\small{m^3}$ and 3.23 ng/$\small{m^3}$ of Chungnam A area, respectively. The concentration level was similar to other metals except lead and iron in Chungnam A area and Seoul. From the concentration of heavy metal included in 0.10-0.056 $\small{{\mu}m}$, 0.056 $\small{{\mu}m}$, the lead concentration of Chungnam A area was 0.31 ng/$\small{m^3}$ and 0.12 ng/$\small{m^3}$ while Gwangyang was 0.28 ng/$\small{m^3}$, 0.06 ng/$\small{m^3}$. Thus Chungnam A area showed higher lead concentration than Gwangyang. The manganese concentration of Chungnam A area was 0.12 ng/$\small{m^3}$ and 0.03 ng/$\small{m^3}$ while Gwangyang was 0.21 ng/$\small{m^3}$ and 0.08 ng/$\small{m^3}$. Therefore, the concentration of Gwangyang appeared higher than that of Chunnam A area. These two metals showed statistically significant in 0.056 $\small{{\mu}m}$ (p < 0.05, p < 0.01). Among the concentration of heavy metal in all regions, the result demonstrated that the order of higher concentration is arsenic > iron > zinc > chrome > lead > nickel > copper > manganese.
Keywords
nano-particles;heavy metal;distribution;concentration;
Language
Korean
Cited by
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