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Analyzing the Relationship between Green Infrastructure and Air Quality Issues—South Korean Cases

Author

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  • Jianfeng Liao

    (School of Architecture & Architectural Engineering, Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea)

  • Hwan Yong Kim

    (School of Architecture & Architectural Engineering, Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea)

Abstract

In recent years, with the sustained attention from academia and media to urban air quality and environmental issues, governments and scholars worldwide have been devoted to studying the relationship between air quality and green infrastructure (GI), seeking effective measures to address urban air pollution. This study aims to explore the impact of GI on urban air quality, focusing on analyzing data from Ulsan and Junpo cities in South Korea. Significant statistical significance has been found through correlation analysis between GI area and air pollutants such as nitrogen dioxide, carbon monoxide, particulate matter, and ozone. Specifically, when calculating GI using the Normalized Difference Vegetation Index (NDVI) data, for every 1% increase in GI area, nitrogen dioxide (NO 2 ) decreases by approximately 0.000000001925 ppm. This finding offers important insights for future air quality research and provides empirical evidence for urban planning, emphasizing the significance of green space planning in improving air quality. Additionally, the study suggests that future research should be more diverse, incorporating data from more cities and conducting an in-depth analysis of GI distribution to understand its impact on air quality comprehensively.

Suggested Citation

  • Jianfeng Liao & Hwan Yong Kim, 2024. "Analyzing the Relationship between Green Infrastructure and Air Quality Issues—South Korean Cases," Land, MDPI, vol. 13(8), pages 1-20, August.
    • Handle: RePEc:gam:jlands:v:13:y:2024:i:8:p:1263-:d:1454351
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    References listed on IDEAS

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