Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Variations in the Monthly PM2.5 Concentrations and their Characteristics around the Busan Seaport Area

부산 항만 주변지역 PM2.5 농도의 월 변화 및 특성

  • Kang, Nayeon (Marine Environmental Research Center, Korea Institute of Ocean Science and Technology) ;
  • An, Joon Geon (Risk Assessment Research Center, Korea Institute of Ocean Science and Technology) ;
  • Lee, Seon-Eun (Marine Environmental Research Center, Korea Institute of Ocean Science and Technology) ;
  • Hyun, Sangmin (Marine Environmental Research Center, Korea Institute of Ocean Science and Technology)
  • 강나연 (한국해양과학기술원 해양환경연구센터) ;
  • 안준건 (한국해양과학기술원 위해성분석연구센터) ;
  • 이선은 (한국해양과학기술원 해양환경연구센터) ;
  • 현상민 (한국해양과학기술원 해양환경연구센터)
  • Received : 2021.09.02
  • Accepted : 2021.10.01
  • Published : 2021.10.31
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Abstract

This study investigated the variations in monthly PM2.5 concentrations and their characteristics at the sampling site (35.075°N, 129.080°E) around the Busan seaport area for six months (from August 2020 to January 2021). Monthly PM2.5 concentrations in the filtered samples ranged from 8.4 to 42.3 ㎍/m3 (average=19.6±8.2 ㎍/m3, n=50) and were generally high in August, December, and January, and low in September, October, and November. The variations of monthly PM2.5 concentrations showed similar patterns to those of the neighboring national air quality monitoring sites. The contents of Total Carbon (TC), Organic Carbon (OC), Elemental Carbon (EC), and OC/EC ratios in PM2.5 showed large variability during the study period. The OC/EC ratios ranged from 4.2 to 34.4, suggesting that the relative contributions of OC and EC to the PM2.5 concentrations changed temporally and might be related to their formation sources. Variations in the chemical components of and particle size distributions in PM2.5 showed that high PM2.5 concentrations were affected by various sources, such as sea salt and ship emission. The precursor gas concentrations were discussed in terms of monthly variations and their contributions to PM2.5 concentrations. However, further research is needed to understand the characteristics and behaviors of PM2.5 concentrations around the Busan seaport area.

Keywords

Acknowledgement

이 연구는 과학기술정보통신부의 기후변화대응기술개발사업인 '부산 항만지역에서 미세먼지 발생과 거동에 대한 모니터링(과제번호 PN90430)'의 지원을 받아 수행되었습니다. PM2.5 시료의 SEM-EDS 분석은 강원대학교 연계형 융합 이미징 특화 센터의 장비를 이용하여 분석되었습니다. 또한 초고를 심사해주신 익명의 심사위원님께 감사드립니다.

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