한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제27권5호
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  • Pages.603-613
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  • 2011
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  • 1598-7132(pISSN)
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  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
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제주도 고산지역 대기 미세입자의 산성화 및 중화 특성: 2008년 측정 결과

Acidification and Neutralization Characteristics of Atmospheric Fine Particles at Gosan Site of Jeju Island in 2008

  • Lee, Dong-Eun (Department of Chemistry, Jeju National University) ;
  • Kim, Won-Hyung (Department of Chemistry, Jeju National University) ;
  • Jo, Eun-Kyung (Department of Chemistry, Jeju National University) ;
  • Han, Jong-Heon (Department of Chemistry, Jeju National University) ;
  • Kang, Chang-Hee (Department of Chemistry, Jeju National University) ;
  • Kim, Ki-Hyun (Department of Environment and Energy, Sejong University)
  • 투고 : 2011.07.22
  • 심사 : 2011.08.09
  • 발행 : 2011.10.31
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초록

The collection of $PM_{10}$ and $PM_{2.5}$ samples was made at Gosan site of Jeju Island. Their ionic compositions of both inorganic and organic phases were then analyzed to examine their acidification and neutralization characteristics in atmospheric aerosols. The mass concentrations of $PM_{10}$ and $PM_{2.5}$ at Gosan site were $37.6{\pm}20.1$ and $22.9{\pm}14.3{\mu}g/m^3$, respectively, showing the content ratio of $PM_{2.5}$ to $PM_{10}$ as 61.0%. In the evaluation of ionic balance, the correlation coefficients (r) between the sums of cationic and anionic equivalent concentrations were excellent with 0.982 ($PM_{10}$) and 0.991 ($PM_{2.5}$). The concentration ratios of $PM_{2.5}/PM_{10}$ derived for nss-$SO_4^{2-}$, $NO_3^-$, and $NH_4^+$ were 0.94, 0.56, and 1.02, respectively, indicating the relative dominance of fine fractions. The acidifying capacity of inorganic anions ($SO_4^{2-}$ and $NO_3^-$) in $PM_{10}$ and $PM_{2.5}$ were 96.5% and 97.3%, while those of organic anions ($HCOO^-$ and $CH_3COO^-$) in each fraction were 2.9% and 2.0%, respectively. On the other hand, the neutralizing capacity of $PM_{10}$ and $PM_{2.5}$ by $NH_3$ were 72.8% and 82.3%, while their $CaCO_3$ counter parts were 22.5% and 13.3%, respectively.

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  3. Acidification and neutralization characteristics of size-fractionated atmospheric aerosols at Gosan site of Jeju Isalnd vol.28, pp.1, 2015, https://doi.org/10.5806/AST.2015.28.1.47
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  5. Influences of Asian Dust, Haze, and Mist Events on Chemical Compositions of Fine Particulate Matters at Gosan Site, Jeju Island in 2014 vol.32, pp.1, 2016, https://doi.org/10.5572/KOSAE.2016.32.1.067
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