17:15 〜 19:15
[AAS11-P30] Analysis and Comparison of Long-term Trends in Air Pollutants in Seoul and Beijing
キーワード： Air pollution, PM2.5, PM10, long-term trends, transboundary pollution, urban air quality
Air pollution remains a critical environmental challenge, particularly in densely populated and industrialized cities such as Beijing and Seoul. While Beijing's air quality is significantly impacted by coal combustion and industrial emissions, Seoul faces pollution from vehicular emissions and seasonal transboundary transport. Given these distinct pollution sources, a comparative analysis of long-term air quality trends is essential for assessing mitigation strategies and informing future policies.
This study examines the temporal trends of PM2.5, PM10, SO2, NO2, CO and O3 in Beijing and Seoul from 2014 to 2023, utilizing multi-source air quality datasets and statistical trend analysis. Results indicate that Beijing's PM2.5, PM10 levels remain substantially higher than Seoul’s, with pronounced seasonal peaks in winter. Elevated SO2, NO2 concentrations in Beijing highlight the ongoing impact of industrial combustion, while Seoul exhibits relatively stable NO2 levels, suggesting effective emission controls. Despite improvements, seasonal pollution episodes persist due to transboundary influences and meteorological conditions.
These findings underscore the need for region-specific air quality policies, with Beijing requiring stronger winter pollution controls and Seoul needing enhanced strategies for seasonal and transboundary pollution management. This study provides empirical insights for integrated air quality governance in East Asia.
This study examines the temporal trends of PM2.5, PM10, SO2, NO2, CO and O3 in Beijing and Seoul from 2014 to 2023, utilizing multi-source air quality datasets and statistical trend analysis. Results indicate that Beijing's PM2.5, PM10 levels remain substantially higher than Seoul’s, with pronounced seasonal peaks in winter. Elevated SO2, NO2 concentrations in Beijing highlight the ongoing impact of industrial combustion, while Seoul exhibits relatively stable NO2 levels, suggesting effective emission controls. Despite improvements, seasonal pollution episodes persist due to transboundary influences and meteorological conditions.
These findings underscore the need for region-specific air quality policies, with Beijing requiring stronger winter pollution controls and Seoul needing enhanced strategies for seasonal and transboundary pollution management. This study provides empirical insights for integrated air quality governance in East Asia.