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Analyzing Transboundary Particulate Matters of Korea and China Using Time-series Analyses

  • Journal of the Association of Korean Geographers
  • Abbr : JAKG
  • 2019, 8(1), pp.33-46
  • DOI : 10.25202/JAKG.8.1.3
  • Publisher : Association of Korean Geographers
  • Research Area : Social Science > Geography
  • Received : March 29, 2019
  • Accepted : April 18, 2019
  • Published : April 30, 2019

KIM, KEEWHAN 1 Kim, Oh Seok 2

1고려대학교 경제통계학부
2한국환경정책·평가연구원

Accredited

ABSTRACT

The primary purpose of this research is to analyze the statistical relationship between particulate matter 10㎛ or less in diameter (PM10) of Korea and that of China. Specifically, the pattern of transboundary influence from China to Korea is analyzed, if the relationship turns out statistically significant. Using cross-correlation analyses and autoregressive models, data on PM10 of Seoul, Korea, and Beijing and Tianjin, China are analyzed in accordance with climatic data of Seoul, namely mean temperature, precipitation, average wind speed, prevailing wind directions, and average sea-level pressure. According to the results of crosscorrelation analysis, PM10 of Beijing and Tianjin have affected the air quality of Seoul in a consistent manner; according to the result of autoregressive models, the air quality of Seoul has been affected by its domestic emissions and transboundary PM10 from Beijing and Tianjin that were emitted the day before. Seoul’s PM10 tends to get lower when the wind blows from East to West but to get higher when atmospheric circulation decreases.

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