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Correlation Analysis of Environmental and Ecological Assessment Rating and Atmospheric Pollutant Concentration

  • Journal of the Korean Cartographic Association
  • Abbr : JKCA
  • 2020, 20(1), pp.107-115
  • Publisher : The Korean Cartographic Association
  • Research Area : Social Science > Geography > Geography in general > Cartography
  • Received : November 29, 2019
  • Accepted : April 11, 2020
  • Published : April 30, 2020

Geunhan Kim 1 Suna Kang 1 Jihyun Han 2

1한국환경정책·평가연구원
2국가미세먼지정보센터

Accredited

ABSTRACT

The purpose of this study was to analyze the correlation between the environmental and ecological assessment rating of the land and the urban atmospheric pollutant concentrations measured by the urban atmospheric monitoring network provided by Air Korea of the Ministry of Environment. It also intends to examine whether the environmentally and ecologically excellent areas affect the reduction of air pollutant concentrations. This study performs the Pearson correlation analysis between the average atmospheric pollutant concentrations in each of 260 municipalities in Korea obtained by applying IDW, which is one of the interpolation techniques, using the urban atmospheric measurement network data from 2013 to 2018, and the area ratio of each environmental and ecological assess rating in the municipality from 2013 to 2018. The results of the correlation analysis showed that SO2, CO, NO2, PM10, and PM2.5 concentrations had a higher negative correlation when the ratio of Grade 1 areas, which were considered as the environmentally and ecologically excellent areas, was higher. The negative correlation decreased as the environmental and ecological assessment rating was lowered, and the regions with a higher ratio of Grade 5 areas showed a high positive correlation. The atmospheric pollutant concentrations were lower as the ratio of Grade 1 areas was higher, and the atmospheric pollutant concentrations were higher as the ratio of Grade 5 areas was higher. The results confirmed that, even in the same green regions, the atmospheric pollutant concentrations decreased as the ratio of environmentally and ecologically excellent areas increased. Therefore, it is necessary to secure sufficient environmentally and ecologically excellent areas to reduce the atmospheric pollutant concentrations that affect the people’s health, and the urban plans should address the management of environmentally and ecologically excellent areas. Future studies include the additional correlation analysis with various factors such as the patch area and patch distribution in the environmentally and ecologically excellent areas. The analysis result should be reflected in the national policies.

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