Factors influencing PM10 and PM2.5 concentrations before and during COVID-19 in subway stations of Seoul Metro

Hwang, Sung Ho; Won, Jong-Uk; Park, Wha Me

doi:10.1007/s11869-023-01425-x

Air Qual Atmos Health

2023

DOI: 10.1007/s11869-023-01425-x

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Factors influencing PM10 and PM2.5 concentrations before and during COVID-19 in subway stations of Seoul Metro

Sung Ho Hwang,

Jong-Uk Won,

Wha Me Park

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Cited by 3 publications

References 17 publications

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Analyzing particulate matter characteristics of the subway system: Case study of Guangzhou

Jin,

Sharifi,

et al. 2024

Case Studies in Chemical and Environmental Engineering

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Analyzing particulate matter characteristics of the subway system: Case study of Guangzhou

Jin,

Sharifi,

et al. 2024

Case Studies in Chemical and Environmental Engineering

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Particulate matter and black carbon exposure in Seoul subway: Implications for human health risk

Roy,

Lim,

Kim

et al. 2024

Journal of Building Engineering

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Changes in total volatile organic compound concentration in Seoul subway stations before (2019) and after (2021) the COVID-19 outbreak

Hwang,

Won,

Park

2023

Sci Rep

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Volatile organic compounds (VOCs) are major air pollutants often designated as specific hazardous or toxic. This study analyzed the trends in concentration changes and influencing factors of VOCs in underground subway stations in the Seoul Metro before (2019) and after (2021) the COVID-19 pandemic. A total of 506 samples were collected from 253 stations on lines 1–8 between May 2019 and September 2021. Total VOC concentrations in Seoul Metro increased after the COVID-19 pandemic 3.8 times over. The deeper the underground station platform, the greater the difference in the VOC concentrations between 2019 and 2021, which was positively related. Average VOC concentration was the highest (52.8 µg/m3) at a depth of 25–30 m and the lowest (23.9 µg/m3) at a depth of < 10 m in 2019. In conclusion, excessive disinfection during the COVID-19 pandemic resulted in increased VOC concentrations in the Seoul Metro, especially in the deeper underground stations. Less frequent quarantine disinfection is recommended to improve air quality.

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Factors influencing PM10 and PM2.5 concentrations before and during COVID-19 in subway stations of Seoul Metro

Cited by 3 publications

References 17 publications

Analyzing particulate matter characteristics of the subway system: Case study of Guangzhou

Analyzing particulate matter characteristics of the subway system: Case study of Guangzhou

Particulate matter and black carbon exposure in Seoul subway: Implications for human health risk

Changes in total volatile organic compound concentration in Seoul subway stations before (2019) and after (2021) the COVID-19 outbreak

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