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Estimation of Tire Dust Emissions by Driving Time or Distance
Original title: 주행 시간 또는 거리에 따른 타이어 분진 배출량 산정
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This Korean study quantified tire dust emissions from vehicles by driving distance and time, finding that 39,000 to 76,000 tons of tire dust are generated annually in Korea. Tire dust particles are a significant source of microplastic and heavy metal contamination in road runoff and urban waterways.
The wear of tires is a phenomenon in which a part of the tire is separated from the road surface by the frictional force applied to the tire tread rubber. Worn tire dust contains heavy metals such as zinc and cadmium, which are considered to have adverse effects on ecosystems through bioaccumulation and biomagnification. In addition, it has been confirmed that a large number of tire fragments as microplastics (defined as less than 5 mm of plastic) are detected at sewage treatment plants and on pavement sides. In this study, we aimed to quantify the tire dust discharged by the driving of vehicles. The emission factors of tire dust in other countries were verified and that of tire dust in Korea is established. As a result, it was confirmed that 39,000 ~ 76,000 tons of tire dust are generated annually in Korea.
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