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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

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    Composition comparison of PM10 and PM2.5 fine particulate matter for Asian dust and haze events of 2010-2011 at Gosan site in Jeju Island

    Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
    2014, v.27 no.1, pp.1-10
    https://doi.org/10.5806/AST.2014.27.1.1






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    Abstract

    The PM10 and PM2.5 samples were collected at Gosan Site of Jeju Island, and analyzed, in orderto investigate the size distribution and pollution characteristics of their components. NH4+, nss-SO42−, K+, andCH3COO− were mostly existed in fine particles. Meanwhile, NO3− was distributed in both fine and coarseparticles, and Na+, Cl−, Mg2+, nss-Ca2+ were rich in coarse particle mode. The concentrations of nss-Ca2+ andNO3− were increased 36.7 and 3.2 times in coarse particles, and 15.0 and 3.1 times in fine particles duringthe Asian Dust periods. Especially, the concentrations of crustal elemental species such as Al, Fe, Ca, K, Mg,Ti, Mn, Sr, Ba were highly increased for those periods. In the haze events, the concentrations of secondaryair pollutants were increased 1.3~2.6 and 1.5~4.2 times in coarse and fine particles, respectively. Moreover,the remarkable increase of NO3− concentration was also observed in fine particle mode. The factor analysisshowed that the composition of coarse particles was influenced mainly by marine sources, followed by soiland anthropogenic sources. On the other hand, the fine particles were influenced by anthropogenic sources,followed by marine and soil sources.

    keywords
    asian dust, haze, <TEX>$PM_{10}$</TEX>, <TEX>$PM_{2.5}$</TEX>, chemical composition, Gosan site


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