Recent Occurrence of PAHs and n-Alkanes in PM2.5 in Seoul, Korea and Characteristics of Their Sources and Toxicity
- 주제(키워드) PAHs , n-alkanes , diagnostic ratio , source characteristics , toxicity
- 주제(기타) Environmental Sciences
- 주제(기타) Public, Environmental & Occupational Health
- 설명문(일반) [Kang, Minkyung; Kim, Kiae; Choi, Narae; Lee, Ji Yi] Ewha Womans Univ, Environm Sci & Engn, Seoul 03760, South Korea; [Kim, Yong Pyo] Ewha Womans Univ, Chem Engn & Mat Sci, Seoul 03760, South Korea
- 관리정보기술 faculty
- 등재 SCIE, SSCI, SCOPUS
- OA유형 Green Published, gold
- 발행기관 MDPI
- 발행년도 2020
- URI http://www.dcollection.net/handler/ewha/000000169556
- 본문언어 영어
- Published As https://dx.doi.org/10.3390/ijerph17041397
- PubMed https://pubmed.ncbi.nlm.nih.gov/32098187
초록/요약
Polycyclic Aromatic Hydrocarbons (PAHs) and n-alkanes in particulate matter with an aerodynamic diameter of 2.5 micrometers or less (PM2.5) were quantified at Seoul, Korea in 2018. The seasonal differences in the total concentration of PAHs and n-Alkanes were clear, where winter showed a higher concentration than that of summer. Compared to the PAHs measurements in 2002 at Seoul, the sum of PAHs concentrations in 2018 were reduced from 26.6 to 5.6 ng m(-3). Major sources of the observed PAHs and n-alkanes were deduced from various indicators such as diagnostic ratios for PAHs and Cmax, CPI, and WNA (%) indices for n-alkanes. It was found that in winter coal and biomass combustions, and vehicular exhaust were major sources, while, in summer vehicular exhaust was major source. In addition, in winter, major emission sources were located outside of Seoul. The health effect from the recent level of PAHs was estimated and compared to the previous studies observed in Seoul, and it was found that, recently, the toxicity of PAHs in PM2.5 was significantly decreased, except for in the winter.
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