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Source Apportionment and Chemical Characteristics of Atmospheric PM2.5 in an Agricultural Area of Korea

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2018, 27(5), pp.431-446
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering

Jinhee Jeong 1 Jongmyoung Lim 2 Lee, Jin-Hong 1

1충남대학교
2한국원자력연구원

Accredited

ABSTRACT

In this study, chemical characteristics of PM2.5 samples collected in an agricultural area in Nonsan of Korea were investigated focusing on of black carbon, 3 inorganic ions and 22 trace elements. It was found that the relative error and relative standard deviation of many trace elements fell below 10%, which indicates good analytical accuracy and precision. The mean values of PM2.5 in an agricultural area were exceeded by new Korean air quality standard of March 2018. The concentration of PM2.5 was well correlated with those of black carbon and ions. The concentrations of trace elements were in a wide range of seven orders of a magnitude. Based on these PM2.5 data sets, a total of 6 sources were identified using PMF (Positive Matrix Factorization; secondary aerosol (34.4%), soil/road dust (20.1%), biomass burning (16.9%), incineration/fuel combustion (13.2%), vehicle exhaust (12.2%), seasalt (3.17%). Results of our study indicate that it is very important to control illegal burning activities in agricultural area.

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