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Composition and pollution characteristics of PM10 and PM2.5 particles at Gosan site of Jeju Island in 2008

PM10, PM2.5 미세먼지의 조성 및 오염 특성: 2008년 제주도 고산지역 측정 결과

  • Received : 2011.08.04
  • Accepted : 2011.08.09
  • Published : 2011.08.25

Abstract

The collection of atmospheric $PM_{10}$ and $PM_{2.5}$ particle samples was made at Gosan site of Jeju Island, which is one of the most representative background sites in Korea. Their chemical compositions have been analyzed to explore the pollution characteristics and emission sources. The mass concentrations of $PM_{10}$ and $PM_{2.5}$ particles were $37.6{\pm}20.1$ and $22.9{\pm}14.3{\mu}g/m^3$, respectively, with the content of $PM_{2.5}$ to $PM_{10}$ as 61%. The $PM_{2.5}/PM_{10}$ ratios of nss-$SO_4^{2-}$, $NO_3^-$, and $NH_4^+$ were 0.94, 0.56, 1.02, respectively, indicating that these components were distributed mostly in the fine fractions. Based on the factor analysis, it was found that the compositions of fine particles were mainly influenced by anthropogenic sources, followed by soil or marine sources. The results of the backward trajectory analysis indicate that the concentrations of nss-$SO_4^{2-}$, $NO_3^-$, $NH_4^+$, nss-$Ca^{2+}$, and Pb were high when the air parcels moved from the China continent, while relatively low with the air parcels coming from North Pacific Ocean and/or East Sea.

Keywords

$PM_{10}$;$PM_{2.5}$;chemical composition;Gosan site;backward trajectory

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Cited by

  1. Characteristics of the Number and the Mass Concentrations and the Elemental Compositions of PM10in Jeju Area vol.23, pp.3, 2014, https://doi.org/10.5322/JESI.2014.23.3.447
  2. Analytical methods for atmospheric particulate aerosols: Focused on the physical properties and chemical composition of metals and water soluble ionic compounds vol.28, pp.3, 2015, https://doi.org/10.5806/AST.2015.28.3.139
  3. Characteristics of Metallic and Ionic Elements Concentration in PM10 at Guducsan in Busan vol.25, pp.5, 2016, https://doi.org/10.5322/JESI.2016.25.5.715
  4. Comparison of the Number Concentration and the Chemical Composition of the Atmospheric PM2.5in Jeju Area vol.23, pp.5, 2014, https://doi.org/10.5322/JESI.2014.5.743

Acknowledgement

Supported by : 한국연구재단