Recent Occurrence of PAHs and n-Alkanes in PM2.5 in Seoul, Korea and Characteristics of their Sources and Toxicity

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 conc...

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Published in:International journal of environmental research and public health 2020-02, Vol.17 (4), p.1397
Main Authors: Kang, Minkyung, Kim, Kiae, Choi, Narae, Kim, Yong Pyo, Lee, Ji Yi
Format: Article
Language:English
Subjects:
Air Pollutants - analysis
Air Pollutants - toxicity
Alkanes
Biomass
Biomass burning
Carbon
Carcinogens
China
Coal
Diagnostic systems
Emissions
Environmental Monitoring
Health risk assessment
Humans
Hydrocarbons
Molecular weight
Particulate emissions
Particulate Matter
Pollutants
Polycyclic aromatic hydrocarbons
Polycyclic Aromatic Hydrocarbons - analysis
Polycyclic Aromatic Hydrocarbons - toxicity
Principal components analysis
Republic of Korea
Seasonal variations
Seasons
Seoul
Summer
Temperature
Toxicity
Vehicle emissions
Winter
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description 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 . 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 PM was significantly decreased, except for in the winter.
doi_str_mv 10.3390/ijerph17041397
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subjects Air Pollutants - analysis
Air Pollutants - toxicity
Alkanes
Biomass
Biomass burning
Carbon
Carcinogens
China
Coal
Diagnostic systems
Emissions
Environmental Monitoring
Health risk assessment
Humans
Hydrocarbons
Molecular weight
Particulate emissions
Particulate Matter
Pollutants
Polycyclic aromatic hydrocarbons
Polycyclic Aromatic Hydrocarbons - analysis
Polycyclic Aromatic Hydrocarbons - toxicity
Principal components analysis
Republic of Korea
Seasonal variations
Seasons
Seoul
Summer
Temperature
Toxicity
Vehicle emissions
Winter
title Recent Occurrence of PAHs and n-Alkanes in PM2.5 in Seoul, Korea and Characteristics of their Sources and Toxicity
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