Verification of On-Site Applicability of Rainwater Road Surface Spraying for Promoting Rainwater Utilization and Analyzing the Fine Dust Reduction Effect

JungMin Lee (), JongSoo Choi, MyeongIn Kim, YoungTae Cho, JaeKyoung Kim and PilKyu Cho
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JungMin Lee: Land and Housing Research Institute, Yuseong-gu, Daejeon 34047, Republic of Korea
JongSoo Choi: Land and Housing Research Institute, Yuseong-gu, Daejeon 34047, Republic of Korea
MyeongIn Kim: Land and Housing Research Institute, Yuseong-gu, Daejeon 34047, Republic of Korea
YoungTae Cho: Land and Housing Research Institute, Yuseong-gu, Daejeon 34047, Republic of Korea
JaeKyoung Kim: Department of Environmental Landscape Architecture, Gangneung-Wonju National University, Gangneung 25457, Republic of Korea
PilKyu Cho: Land and Housing Research Institute, Yuseong-gu, Daejeon 34047, Republic of Korea

Sustainability, 2024, vol. 16, issue 20, 1-24

Abstract: This study conducted a pilot test and field demonstration to analyze the feasibility of using rainwater for road surface sprinkling and its effectiveness in reducing fine dust to create sustainable cities. The pilot test results verified the effectiveness of rainwater sprinkling on road surfaces in reducing fine dust. Subsequently, to ensure field applicability, a test bed with different pavement sections was established along Ojeong-ro in Bucheon, Gyeonggi-do, and a circulatory system for reusing the runoff rainwater was installed and tested for its acceptable dust reduction effectiveness. The results showed that the section with porous pavement exhibited a significant reduction in acceptable dust levels, and a trend of decreasing pollutant levels due to the initial washing effect of rainwater was observed. However, the water quality and quantity analysis revealed that additional purification processes are necessary to reuse the water for road surface sprinkling. Based on these findings, this study suggests that expanding porous pavement and introducing purification systems are essential for installing rainwater utilization facilities to reduce fine dust in urban areas. This research provides critical foundational data that can contribute to urban environmental improvement and establish a sustainable water circulation system.

Keywords: rainwater utilization; water quality improvement; permeable pavement; fine dust concentration; fine dust reduction (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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