Recent Occurrence of PAHs and n-Alkanes in PM2.5 in Seoul, Korea and Characteristics of their Sources and Toxicity
| Autor: | Kiae Kim, Ji Yi Lee, Minkyung Kang, Narae Choi, Yong Pyo Kim |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
China
010504 meteorology & atmospheric sciences Seoul Health Toxicology and Mutagenesis lcsh:Medicine Biomass 010501 environmental sciences complex mixtures 01 natural sciences Article PAHs Alkanes Republic of Korea polycyclic compounds Humans Aerodynamic diameter Coal diagnostic ratio Polycyclic Aromatic Hydrocarbons 0105 earth and related environmental sciences Air Pollutants N alkanes business.industry lcsh:R Public Health Environmental and Occupational Health toxicity Particulates source characteristics Health effect Environmental chemistry Toxicity Environmental science Particulate Matter Seasons n-alkanes business Environmental Monitoring |
| Zdroj: | International Journal of Environmental Research and Public Health Volume 17 Issue 4 International Journal of Environmental Research and Public Health, Vol 17, Iss 4, p 1397 (2020) |
| ISSN: | 1660-4601 |
| DOI: | 10.3390/ijerph17041397 |
| Popis: | 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&minus 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. |
| Databáze: | OpenAIRE |
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