Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Distribution Characteristics and Source Estimation of Polycyclic Aromatic Hydrocarbons in PM-10 from Gwangju

광주지역 미세먼지(PM-10)의 다환방향족탄화수소 분포 특성 및 발생원 추정

  • Seung-Ho Kim (Health and Environment Research Institute of Gwangju) ;
  • Byung-Hoon Park (Health and Environment Research Institute of Gwangju) ;
  • Min-cheol Cho (Health and Environment Research Institute of Gwangju) ;
  • Hye-Yun Na (Health and Environment Research Institute of Gwangju) ;
  • Won-Hyung Park (Health and Environment Research Institute of Gwangju) ;
  • Gwang-yeob Seo (Health and Environment Research Institute of Gwangju) ;
  • Se-Heang Lee (Health and Environment Research Institute of Gwangju) ;
  • Hung-Soo Joo (Department of Environmental Engineering, Anyang University)
  • 김승호 (광주광역시보건환경연구원) ;
  • 박병훈 (광주광역시보건환경연구원) ;
  • 조민철 (광주광역시보건환경연구원) ;
  • 나혜윤 (광주광역시보건환경연구원) ;
  • 박원형 (광주광역시보건환경연구원) ;
  • 서광엽 (광주광역시보건환경연구원) ;
  • 이세행 (광주광역시보건환경연구원) ;
  • 주흥수 (안양대학교 환경에너지공학과)
  • Received : 2023.02.10
  • Accepted : 2023.03.30
  • Published : 2023.04.30
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Abstract

This study was conducted to investigate the distribution characteristics, source identification, and health risk of polycyclic aromatic hydrocarbons (PAHs) present in particulate matter 10 (PM-10), in Gwangju. PM-10 samples were collected from September 2021 to August 2022 from three sampling sites, one located in each of the following areas: green, residential, and industrial. The average concentrations of PAHs were found to be higher in the industrial area (9.75±6.51 ng/㎥) than in the green (6.90±2.41 ng/㎥) and residential (6.74±2.38 ng/㎥) areas. Throughout the year and across all sites, five-ring PAHs accounted for the largest proportion (29.8-34.5%) of all PAHs. The concentrations of PAHs showed distinct seasonal variations, with the highest concentration observed in winter, followed by autumn, spring, and summer. Source apportionment analyses were performed using diagnostic ratios and principal component analyses, which indicated that coal/biomass combustion and vehicle emissions were the primary sources of PAHs in PM-10. The incremental lifetime cancer risk was estimated for all age groups at all sampling sites, and the results revealed a much lower risk level than the standard acceptable risk level (1×10-6).

Keywords

Acknowledgement

본 연구는 2022년 환경부 환경분야 시험검사의 국제적 적합성 기반구축 사업과 광주광역시보건환경연구원 연구역량강화 사업의 지원으로 수행 되었습니다.

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