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Article

Concentration of Microplastics in Road Dust as a Function of the Drying Period—A Case Study in G City, Korea

by 1,2, 2, 1,2, 1,2 and 1,2,*
1
Civil and Environmental Engineering, University of Science and Technology, Daejeon 34113, Korea
2
Department of Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang 10223, Korea
*
Author to whom correspondence should be addressed.
Academic Editors: Elena Rada, Marco Ragazzi, Ioannis Katsoyiannis, Elena Magaril, Paolo Viotti, Hussain H. Al-Kayiem, Marco Schiavon, Gabriela Ionescu, Natalia Sliusar and Luis Jesús Belmonte-Ureña
Sustainability 2022, 14(5), 3006; https://doi.org/10.3390/su14053006
Received: 1 December 2021 / Revised: 2 February 2022 / Accepted: 28 February 2022 / Published: 4 March 2022
(This article belongs to the Topic Solid Waste Management)
Microplastics (MPs) are plastic particles < 5 mm in diameter, which are detected in air, soil, and water, causing various environmental problems. In total, 37.3% of MPs are generated from point pollution sources and 62.7% from non-point sources; most of the non-point-source MPs are from vehicles tires, road-marking paint, and bitumen used in road pavements. In this study, the concentrations of MPs generated from roads in Goyang city, South Korea, were examined in terms of the drying period (0, 1, 2, or 3 d). Road dust sampling was performed at the kerb and quantitative and qualitative analyses were conducted for each sample. The MP concentrations were 552 (±39) MPs g−1 for a 0 d drying period and 1530 (±602) MPs g−1 for a 3 d drying period, confirming that the MP concentration in road dust increased with the increase in drying period. Among the detected substances, black particles accounted for the highest proportion (72%) and were found to be bitumen and tyre particles. This study also confirmed that the MPs accumulated on roads were washed away when rainfall exceeded a certain amount. View Full-Text
Keywords: microplastics; road dust; tyre wear; non-point pollution microplastics; road dust; tyre wear; non-point pollution
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MDPI and ACS Style

Kang, H.; Park, S.; Lee, B.; Kim, I.; Kim, S. Concentration of Microplastics in Road Dust as a Function of the Drying Period—A Case Study in G City, Korea. Sustainability 2022, 14, 3006. https://doi.org/10.3390/su14053006

AMA Style

Kang H, Park S, Lee B, Kim I, Kim S. Concentration of Microplastics in Road Dust as a Function of the Drying Period—A Case Study in G City, Korea. Sustainability. 2022; 14(5):3006. https://doi.org/10.3390/su14053006

Chicago/Turabian Style

Kang, Heejun, Saerom Park, Bokjin Lee, Ilho Kim, and Seogku Kim. 2022. "Concentration of Microplastics in Road Dust as a Function of the Drying Period—A Case Study in G City, Korea" Sustainability 14, no. 5: 3006. https://doi.org/10.3390/su14053006

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