• Characteristics of PAHs Concentration in Soil Contamination Concerned Area of Gwangju
  • Sang Hoon Yoon1*·Woo Jin Lee1·Min Hwa Lim1·Yeon Jae Jeong1·Mi Ae Park1· Hong Dae Jeon1·Byoung Hoon Park1·Gwang Yeob Seo1·Seok Jin Bae1·Jeong Hun Park2

  • 1Health and Environment Research Institute of Gwangju, Gwangju, Korea
    2Department of Environment and energy Engineering, Chonnam National University

  • 광주지역 토양오염우려지역의 PAHs 농도 특성 연구
  • 윤상훈1*·이우진1·임민화1·정연재1·박미애1·전홍대1·박병훈1·서광엽1·배석진1·박정훈2

  • 1광주광역시보건환경연구원
    2전남대학교 환경에너지공학과

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


The concentration levels and distribution characteristics of 16 polycyclic aromatic hydrocarbons (PAHs) were investigated and evaluated for total 100 soil samples as a part of the survey on soil contamination in Gwangju. The results (median and range) of T-PAHs (sum of 16 PAH concentrations), C-PAHs (sum of carcinogenic PAH concentrations) and T-TEQs (sum of 16 TEQ concentrations) were 20.8 (7.6~1158.1), 2.2 (N.D~509.6), and 0.3 (N.D~424.6) mg/kg, respectively. There was a positive correlation between C-PAHs/T-PAHs and T-TEQs/T-PAHs except one point where the concentration of benzo(a)pyrene was high. The ratios of the C-PAHs/T-PAHs were 31.7% for low molecular weight-PAHs and 68.3% for high molecular weight-PAHs, suggesting that PAHs generation mainly arose from combustion sources. The ratio of isomers of individual PAHs, Phe/Ant, Flu/Pyr, Ant/(Ant+Phe), Flu/(Flu+Pyr), and BaA/(BaA+Chr), also confirmed the predominance of PAHs from combustion activities. Statistical tracing of the source of PAHs through principal component analysis indicated that the main sources of combustion were automobile fuel and coal. The overall results of this study suggested HMW-PAHs, T-PAHs, C-PAHs and T-TEQs should be separately evaluated to better assess the toxicity and environmental behavior of individual PAHs.

Keywords: PAHs, Soil, Combustion, Generation, Statistical tracing

This Article

  • 2022; 27(2): 50-60

    Published on Apr 30, 2022

  • 10.7857/JSGE.2022.27.2.050
  • Received on Feb 21, 2022
  • Revised on Mar 3, 2022
  • Accepted on Mar 18, 2022

Correspondence to

  • Sang Hoon Yoon
  • Health and Environment Research Institute of Gwangju, Gwangju, Korea

  • E-mail: enoughface@korea.kr