Artigos de revistas: "Tire-road wear particule"

1

Jeong, Yoonah, Seokhwan Lee e Sang-Hee Woo. "Chemical Leaching from Tire Wear Particles with Various Treadwear Ratings". International Journal of Environmental Research and Public Health 19, n.º 10 (15 de maio de 2022): 6006. http://dx.doi.org/10.3390/ijerph19106006.

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Physical friction between a tire and the road surface generates tire wear particles (TWPs), which are a source of microplastics and particulate matter. This study investigated the trends of chemical leaching from TWPs depending on the treadwear rating of the tire. A road simulator was used to produce TWPs from tires with various treadwear ratings. Liquid chromatography–tandem mass spectrometry was used to analyze the chemical leaching from TWPs, with a particular focus on benzothiazole and its derivative 2-hydroxy benzothiazole. However, chemical mapping via high-resolution tandem mass spectrometry detected another derivative: 2-mercaptobenzothiazole. The benzothiazole groups were observed to have different leaching tendencies, implying that using benzothiazole as a marker compound may lead to incorrect TWP quantitation. The results of this research also suggest that the ecotoxicological influence of TWPs can vary with the treadwear rating of a tire.

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Mun, Sunhee, Hwansoo Chong, Jongtae Lee e Yunsung Lim. "Characteristics of Real-World Non-Exhaust Particulates from Vehicles". Energies 16, n.º 1 (23 de dezembro de 2022): 177. http://dx.doi.org/10.3390/en16010177.

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The need to regulate the non-exhaust particulate matter (PM) emissions from vehicles has been discussed worldwide due to the bad environmental impact and the toxicity to the human body. In-depth studies have been precisely conducted on the analysis of the non-exhaust particulate matters, in particular, the amount of tire, brake and road wear particles and their proportion in the atmosphere. In this study, the influence of tire and road wear particles (TRWP) on PM in the atmosphere was investigated with tire and PM samples. The PM samples suspended in the atmosphere were collected with a high-volume sampler equipped with a quartz filter. Additionally, polycyclic aromatic hydrocarbons (PAHs) and metal components in tire rubber were analyzed as markers by pyrolysis–gas chromatography/mass spectrometry (pyrolysis–GC/MS), GC/MS, and inductively coupled plasma/mass spectrometry (ICP/MS). More vinylcyclohexene was detected than dipentene in the markers measured in the samples of tires equipped with vehicles driving on the road, while more dipentene was measured in total suspended particles (TSP) samples. Among the PAHs in tire samples, pyrene exhibited the highest concentration. Benzo(b)fluoranthene showed the highest concentration in the TSP samples. Among the metals, the highest concentration was zinc in all tire samples and calcium in TSP samples.

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Troyanovskaya, I., O. Grebenshchikova e V. Erofeev. "Measurements of Tire and Roadway Dust Particulates in Chelyabinsk". Engineering World 4 (25 de junho de 2022): 27–33. http://dx.doi.org/10.37394/232025.2022.4.5.

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Harmful emissions from tire wear and roadway wear are released into the air during the operation of vehicles. Particulate road dust contains carcinogenic substances. The amount and dispersion of particulate matter in road dust was determined with a portable laser particle counter. On asphalt roads, 75% of the harmful emissions were 0.3 µm particulate matter. On dirt roads, 95% of emissions were from particles less than 1 µm. The amount of large fractions of harmful emissions did not exceed 1.5%, regardless of traffic intensity. 30 m from the roadway, the concentration of harmful substances reduced by five- to sevenfold. By 2030, the number of vehicles in Chelyabinsk will increase by 25%. This will increase the amount of harmful emissions from tire and roadway wear by 20 tons per year.

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Jung, Uiyeong, e Sung-Seen Choi. "Variation in Abundance Ratio of Isoprene and Dipentene Produced from Wear Particles Composed of Natural Rubber by Pyrolysis Depending on the Particle Size and Thermal Aging". Polymers 15, n.º 4 (13 de fevereiro de 2023): 929. http://dx.doi.org/10.3390/polym15040929.

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Tire wear particles (TWPs) are generated by friction between the road and the tire. TWPs are one of the major microplastics found in environmental samples, such as road dust, particulate matter (PM), and sediment. TWP contents in environmental samples are generally analyzed using the pyrolysis technique. Tire tread compounds of heavy vehicles are usually composed of natural rubber (NR). Isoprene and dipentene are the principal pyrolysis products of NR, and dipentene is employed as the key marker for the determination of the TWP contents. In this study, an NR abrasion specimen was thermally aged, and an abrasion test was performed to obtain the wear particles. The influence of the wear particle size and thermal aging on the pyrolysis behavior of NR was investigated. The isoprene/dipentene ratio exponentially increased as the wear particle size decreased, and it was also increased by the thermal aging of the abrasion specimen. The increased isoprene/dipentene ratio by thermal aging was explained by increasing the crosslink density. Using the relationship between the wear particle size and the isoprene/dipentene ratio, it is possible to estimate the isoprene/dipentene ratio for very small TWP such as PM. The experimental results concluded that the wear particle size and thermal aging affect the formation of the key pyrogenic products, and the influencing factors should be considered for the quantification of TWP contents in the environmental samples.

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Jung, Uiyeong, e Sung-Seen Choi. "Classification and Characterization of Tire-Road Wear Particles in Road Dust by Density". Polymers 14, n.º 5 (2 de março de 2022): 1005. http://dx.doi.org/10.3390/polym14051005.

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Tire treads are abraded by friction with the road surface, producing tire tread wear particles (TWPs). TWPs combined with other particles on the road such as road wear particles (RWPs) and mineral particles (MPs), forming tire-road wear particles (TRWPs). Dust on an asphalt pavement road is composed of various components such as TRWPs, asphalt pavement wear particles (APWPs), MPs, plant-related particles (PRPs), and so on. TRWPs have been considered as one of major contaminants produced by driving and their properties are important for study on real abrasion behaviors of tire treads during driving as well as environmental contamination. Densities of the TRWPs are totally dependent on the amount of the other components deposited in the TWPs. In this study, a classification method of TRWPs in the road dust was developed using density separation and the classified TRWPs were characterized using image analysis and pyrolytic technique. Chloroform was used to remove APWPs from mixture of TRWPs and APWPs. TRWPs were found in the density range of 1.20–1.70 g/cm3. By decreasing the particle size of the road dust, the TRWP content in the road dust increased and its density slightly tended to increase. Aspect ratios of the TRWPs varied and there were many TRWPs with low aspect ratio below 2.0. The aspect ratio range was 1.2–5.2. Rubber compositions of the TRWPs were found to be mainly NR/SBR biblend or NR/BR/SBR triblend.

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Kovochich, Michael, Monty Liong, Jillian A. Parker, Su Cheun Oh, Jessica P. Lee, Luan Xi, Marisa L. Kreider e Kenneth M. Unice. "Chemical mapping of tire and road wear particles for single particle analysis". Science of The Total Environment 757 (fevereiro de 2021): 144085. http://dx.doi.org/10.1016/j.scitotenv.2020.144085.

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Hesse, David, Toni Feißel, Miles Kunze, Eric Bachmann, Thomas Bachmann e Sebastian Gramstat. "Comparison of Methods for Sampling Particulate Emissions from Tires under Different Test Environments". Atmosphere 13, n.º 8 (9 de agosto de 2022): 1262. http://dx.doi.org/10.3390/atmos13081262.

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Traffic-related emissions are strongly criticised by the public because they contribute to climate change and are classified as hazardous to health. Combustion engine emissions have been regulated by limit values for almost three decades. There is currently no legal limit for non-exhaust emissions, which include tire wear particle emissions and resuspension. As a result, the percentage of total vehicle emissions has risen continuously. Some of the particles emitted can be assigned to the size classes of particulate matter (≤10 µm) and are therefore of particular relevance to human health. The literature describes a wide range of concepts for sampling and measuring tire wear particle emissions. Because of the limited number of studies, the mechanisms involved in on-road tests and their influence on the particle formation process, particle transport and the measuring ability can only be described incompletely. The aim of this study is to compare test bench and on-road tests and to assess the influence of selected parameters. The first part describes the processes of particle injection and particle distribution. Based on this, novel concepts for sampling and measurement in the laboratory and in the field are presented. The functionality and the mechanisms acting in each test environment are evaluated on the basis of selected test scenarios. For example, emissions from external sources, the condition of the road surface and the influence of the driver are identified as influencing factors. These analyzes are used to illustrate the complexity and limited reproducibility of on-road measurements, which must be taken into account for future regulations.

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Klöckner, Philipp, Bettina Seiwert, Paul Eisentraut, Ulrike Braun, Thorsten Reemtsma e Stephan Wagner. "Characterization of tire and road wear particles from road runoff indicates highly dynamic particle properties". Water Research 185 (outubro de 2020): 116262. http://dx.doi.org/10.1016/j.watres.2020.116262.

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Tonegawa, Yoshio, e Sousuke Sasaki. "Development of Tire-Wear Particle Emission Measurements for Passenger Vehicles". Emission Control Science and Technology 7, n.º 1 (15 de janeiro de 2021): 56–62. http://dx.doi.org/10.1007/s40825-020-00181-z.

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AbstractIn this study, we aimed to develop a new method for measuring tire-wear particles of less than 2.5 μm generated from vehicle use. We also aimed to devise a method for evaluating the emission factor of tire-wear particles. To develop an evaluation method for tire-wear particles, we examined several factors, such as how tire components in airborne particles collected on a sampling filter were measured, the comparison of tire-wear particles obtained in a laboratory study and an on-road study, a method for measuring tire-wear particles using a test vehicle, and a method for evaluating tire-wear mass using a weighting balance. Measurements of tire-wear particles were carried out using the measurement method proposed herein. The amount of tire wear that the particles generated was almost constant in a vehicle speed range of 20–40 km/h but was influenced by a change in lateral acceleration in the range of 0–0.4G. Furthermore, the relationship between the emission of tire-wear particles and the lateral acceleration force can be shown by a quadratic polynomial. We estimated the emission factor of tire-wear particles by applying the relational equation to the speed profile of the JC08 used in Japanese exhaust gas tests. The emission factor of the test tire used in this study was 3.7 mg/km-vehicle. The ratio of the tire-wear particles to tread wear mass was about 3.3% at PM2.5 and 3.7% at PM10.

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Karimova, Kamola, Kubaymurot Ismayilov, Abdulaziz Shermukhamedov, Zebo Alimova, Utkirjon Rakhmatov e Kwonse Kim. "Methods of determining the amount of harmful particles released into the environment as a result of car tire wear". IOP Conference Series: Earth and Environmental Science 1231, n.º 1 (1 de agosto de 2023): 012028. http://dx.doi.org/10.1088/1755-1315/1231/1/012028.

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Abstract This article describes determining methods of metal emissions in the composition of small particles coming by brake mechanisms details and tire wear as a result of vehicle movement, and dust to be formed by comparative analysis on asphalt-concrete roads of different compositions. A significant contributor to particulate matter in cities is traffic-related sources. Traffic-related particles can be divided into exhaust particles released by the incomplete combustion of fuel and the volatilization of lubricants during combustion and formed by brake mechanism parts, tire wear and road surface wear, and accumulated due to turbulence caused by road traffic. The method of determining the metal concentration in the formed particles gives information on the physico-chemical properties of the particles.

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Son, Chae Eun, e Sung-Seen Choi. "Preparation and Characterization of Model Tire–Road Wear Particles". Polymers 14, n.º 8 (8 de abril de 2022): 1512. http://dx.doi.org/10.3390/polym14081512.

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Tire tread wear particles (TWPs) are one of major sources of microplastics in the environment. Tire–road wear particles (TRWPs) are mainly composed of TWPs and mineral particles (MPs), and many have long shapes. In the present work, a preparation method of model TRWPs similar to those found in the environment was developed. The model TRWPs were made of TWPs of 212–500 μm and MPs of 20–38 μm. Model TWPs were prepared using a model tire tread compound and indoor abrasion tester while model MPs were prepared by crushing granite rock. The TWPs and MPs were mixed and compressed using a stainless steel roller. The TWPs were treated with chloroform to make them stickier. Many MPs in the model TRWP were deeply stuck into the TWPs. The proper weight ratio of MP and TWP was MP:TWP = 10:1, and the double step pressing procedure was good for the preparation of model TRWPs. The model TRWPs were characterized using scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). The model TRWPs had long shapes and the MP content was about 10%. The model TRWPs made of TWPs and asphalt pavement wear particles showed plate-type particles deeply stuck into the TWP. Characteristics of model TRWPs can be controlled by employing various kinds and sizes of TWPs and MPs. The well-defined model TRWPs can be used as the reference TRWPs for tracing the pollutants.

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12

Stalnaker, D., J. Turner, D. Parekh, B. Whittle e R. Norton. "Indoor Simulation of Tire Wear: Some Case Studies". Tire Science and Technology 24, n.º 2 (1 de abril de 1996): 94–118. http://dx.doi.org/10.2346/1.2137517.

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Abstract Methodology is described for the indoor simulation of tire wear. The motivation for developing indoor simulations was the need to establish consistent test results in reduced time and costs. Descriptions are given of two different indoor test facilities, a PC-based laser scanning system for quantifying tire wear and an on-vehicle tire force measurement system for replicating road histories in the laboratory. Case studies illustrate (1) the influence of tire load history on wear, in particular city cornering versus highway driving and drive torque versus free rolling, (2) the influence of a 3 m road wheel versus a fiat belt on wear, and (3) detailed comparisons between vehicle-tested and indoor-tested tires. Results indicate good correlation between indoor and fleet testing.

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Zhong, Chongzhi, Jiaxing Sun, Jing Zhang, Zishu Liu, Tiange Fang, Xiaoyu Liang, Jiawei Yin et al. "Characteristics of Vehicle Tire and Road Wear Particles’ Size Distribution and Influencing Factors Examined via Laboratory Test". Atmosphere 15, n.º 4 (29 de março de 2024): 423. http://dx.doi.org/10.3390/atmos15040423.

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With the implementation of strict emission regulations and the use of cleaner fuels, there has been a considerable reduction in exhaust emissions. However, the relative contribution of tire wear particles (TWPs) to particulate matters is expected to gradually increase. This study conducted laboratory wear experiments on tires equipped on domestically popular vehicle models, testing the factors and particle size distribution of TWPs. The results showed that the content of tire wear particle emission was mainly ultrafine particles, accounting for 94.80% of particles ranging from 6 nm to 10 μm. There were at least two concentration peaks for each test condition and sample, at 10~13 nm and 23~41 nm, respectively. The mass of TWP emission was mainly composed of fine particles and coarse particles, with concentration peaks at 0.5 μm and 1.3–2.5 μm, respectively. Both the number and mass of TWPs exhibited a bimodal distribution, with significant differences in emission intensity among different tire samples. However, there was a good exponential relationship between PM10 mass emissions from tire wear and tire camber angle. The orthogonal experimental results showed that the slip angle showed the greatest impact on TWP emission, followed by speed and load, with the smallest impact from inclination angle.

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Bae, Seok-Hu, Eunji Chae, Yong-Soo Park, Seung-Won Lee, Ju-Ho Yun e Sung-Seen Choi. "Characteristics of tire-road wear particles (TRWPs) and road pavement wear particles (RPWPs) generated through a novel tire abrasion simulator based on real road pavement conditions". Science of The Total Environment 944 (setembro de 2024): 173948. http://dx.doi.org/10.1016/j.scitotenv.2024.173948.

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Grechkin, A. V., e A. V. Kotlyarenko. "Review and analysis of modern methods to estimate particulate matter emissions from tire and road wear". Trudy NAMI, n.º 3 (4 de outubro de 2022): 74–84. http://dx.doi.org/10.51187/0135-3152-2022-3-74-84.

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Introduction (problem statement and relevance). In operating wheeled vehicles, air pollution occurs that affects human health. The emissions of non-exhaust origin particulate matter are particularly harmful. But the problem is that there does not exist a generally accepted methodology for estimating emissions caused by tire and road wear.The purpose of the study was to review modern methods for estimating wheeled vehicles non-exhaust emissions, to analyze the problematic issues of estimating particulate emissions resulting from tire and road wear.Methodology and research methods. The domestic and foreign studies of non-exhaust origin particulate matter emissions of wheeled vehicles were analyzed during the work with the help of systematic analysis method, as well as the analysis of regulatory legal acts in this area was made.Scientific novelty and results. The article summarizes the recent studies results of environmental emissions of non-exhaust origin produced by wheeled vehicles and raises problematic issues to create a methodology for estimating particulate emissions caused by tire and road wear.Practical signifi cance. The article identifies problematic issues in the study of non-exhaust emissions origin, the solution of which will help to determine the main directions for reducing emissions of particulate matter from tire and road wear made in the wheeled vehicles operation.

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Lee, Jongsub, Ohsun Kwon, Yujoong Hwang e Gyumin Yeon. "Laboratory Evaluation of Wear Particle Emissions and Suspended Dust in Tire–Asphalt Concrete Pavement Friction". Applied Sciences 14, n.º 14 (22 de julho de 2024): 6362. http://dx.doi.org/10.3390/app14146362.

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This study aims to evaluate the tire–road-wear particles (TRWPs) and suspended dust generated based on the nominal maximum aggregate size (NMAS) of the polymer-modified stone mastic asphalt (SMA) mixtures indoors. The SMA mixtures containing styrene butadiene styrene (SBS) polymer and the NMASs of 19, 13, 10, 8, and 6 mm were used. Dust was generated from the wear of the tires and the pavement inside the indoor chamber by using the laboratory tire–road-wear particle generation and evaluation tester (LTRWP tester) developed by Korea Expressway Corporation (KEC). In this method, a cylindrical asphalt-mixture specimen rotates in the center, and a load is applied using three tires on the sides of the test specimen. During the test, a digital sensor was used to measure the concentration for each particle size. After the test was completed, the dust was collected and weighed. According to the test results, the generated TRWP emissions were reduced by approximately 0.15 g as the NMAS of the SMA mixture decreased by 1 mm. TRWP emissions decreased by 20% when using the 6 mm SMA mixture compared to the 13 mm SMA mixture. For practical application, a predicted equation of TRWP emissions estimation was developed by using the concentration of suspended dust measured by the digital sensor in the LTRWP tester. LTRWP can be used as an indoor test method to evaluate pavement and tire materials to reduce the amount of dust generated from tire and pavement wear.

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Panko, Julie, Kristen Hitchcock, Gary Fuller e David Green. "Evaluation of Tire Wear Contribution to PM2.5 in Urban Environments". Atmosphere 10, n.º 2 (23 de fevereiro de 2019): 99. http://dx.doi.org/10.3390/atmos10020099.

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Vehicle-related particulate matter (PM) emissions may arise from both exhaust and non-exhaust mechanisms, such as brake wear, tire wear, and road pavement abrasion, each of which may be emitted directly and indirectly through resuspension of settled road dust. Several researchers have indicated that the proportion of PM2.5 attributable to vehicle traffic will increasingly come from non-exhaust sources. Currently, very little empirical data is available to characterize tire and road wear particles (TRWP) in the PM2.5 fraction. As such, this study was undertaken to quantify TRWP in PM2.5 at roadside locations in urban centers including London, Tokyo and Los Angeles, where vehicle traffic is an important contributor to ambient air PM. The samples were analyzed using validated chemical markers for tire tread polymer based on a pyrolysis technique. Results indicated that TRWP concentrations in the PM2.5 fraction were low, with averages ranging from < 0.004 to 0.10 µg/m3, representing an average contribution to total PM2.5 of 0.27%. The TRWP levels in PM2.5 were significantly different between the three cities, with significant differences between London and Los Angeles and Tokyo and Los Angeles. There was no significant correlation between TRWP in PM2.5 and traffic count. This study provides an initial dataset to understand potential human exposure to airborne TRWP and the potential contribution of this non-exhaust emission source to total PM2.5.

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Feißel, Toni, Florian Büchner, Miles Kunze, Jonas Rost, Valentin Ivanov, Klaus Augsburg, David Hesse e Sebastian Gramstat. "Methodology for Virtual Prediction of Vehicle-Related Particle Emissions and Their Influence on Ambient PM10 in an Urban Environment". Atmosphere 13, n.º 11 (18 de novembro de 2022): 1924. http://dx.doi.org/10.3390/atmos13111924.

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As a result of rising environmental awareness, vehicle-related emissions such as particulate matter are subject to increasing criticism. The air pollution in urban areas is especially linked to health risks. The connection between vehicle-related particle emissions and ambient air quality is highly complex. Therefore, a methodology is presented to evaluate the influence of different vehicle-related sources such as exhaust particles, brake wear and tire and road wear particles (TRWP) on ambient particulate matter (PM). In a first step, particle measurements were conducted based on field trials with an instrumented vehicle to determine the main influence parameters for each emission source. Afterwards, a simplified approach for a qualitative prediction of vehicle-related particle emissions is derived. In a next step, a virtual inner-city scenario is set up. This includes a vehicle simulation environment for predicting the local emission hot spots as well as a computational fluid dynamics model (CFD) to account for particle dispersion in the environment. This methodology allows for the investigation of emissions pathways from the point of generation up to the point of their emission potential.

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Pohrt, Roman. "TIRE WEAR PARTICLE HOT SPOTS – REVIEW OF INFLUENCING FACTORS". Facta Universitatis, Series: Mechanical Engineering 17, n.º 1 (28 de março de 2019): 17. http://dx.doi.org/10.22190/fume190104013p.

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Automotive tires have played an important role in land-based transportation and will probably continue to do so for many years to come. During their service lifetime, parts of the outer protector layer are worn off and discarded into the environment. A typical passenger car emits about 120 micrograms of rubber per meter but the exact current value depends on a multitude of influencing factors and varies greatly. We review available data on the wear rate (or inverse expected lifetime) of automotive rubber tires and extract qualitative estimations on how the most important parameters alter the deposition rate on a given road section. Local hot spots of increased tire wear particle occurrence can be identified from these parameters. It is concluded that generally subjecting tires to milder usage conditions can reduce tire wear by substantial amounts. Reducing vehicle speeds is identified as the most effective general measure.

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Shinya, M., K. Funasaka, K. Katahira, M. Ishikawa e S. Matsui. "Lead isotope ratios in urban road runoff". Water Science and Technology 53, n.º 2 (1 de janeiro de 2006): 185–91. http://dx.doi.org/10.2166/wst.2006.052.

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Lead isotopic analyses of road runoff and airborne particulate matter have been carried out to elucidate sources of lead pollution at urban and suburban sites. While lead is often observed in road runoff in suspended form, suspended particle size had no relation to the lead isotopic distribution, as a result of comparison between runoff samples with total suspended solids and those with minute particles passed through a 75 μm sieve. Lead isotope ratios in airborne particulate matter in urban areas fell within a wider range than those in road runoff. Since there was little difference of the ratios between a heavy traffic-flow site and residential sites, airborne lead derived from vehicle exhaust was found to make little contribution to the contamination of road runoff. On the other hand, the ratios in road runoff at a suburban site showed the same range as those at an urban site. Lead in road runoff was therefore suggested to be produced on site by traffic related substances, such as tire wear, other than vehicle exhaust.

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Karimova, K., K. Ismailov, A. Shermukhamedov e Sh Yuldashev. "Influence of particles formed resulting from wear of automobile brake mechanisms on human health". E3S Web of Conferences 508 (2024): 07013. http://dx.doi.org/10.1051/e3sconf/202450807013.

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In this article, details of the brake mechanism and the method of determining the concentration of metals in the particles formed from the wear of tires as a result of the movement of cars, as well as a comparative analysis of road dust formed on asphalt-concrete roads of different composition are covered. In cities’ traffic-related sources are a substantial source of particulate pollution. The following categories of traffic-related particles exist: brake mechanism details, formed as a result of tire wear and wear to the road surface, accumulate due to turbulence caused by traffic, and exhaust particles released as a result of incomplete combustion of fuel and volatilization of lubricants during combustion. The method of determining the metal concentration in the formed particles, data on the physical and chemical properties of the particles are presented. Information is given on the negative impact on human health of the particles formed as a result of wear of the details of the car brake mechanism.

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Rauert, Cassandra, Nathan Charlton, Elvis D. Okoffo, Ryan S. Stanton, Alon R. Agua, Michael C. Pirrung e Kevin V. Thomas. "Concentrations of Tire Additive Chemicals and Tire Road Wear Particles in an Australian Urban Tributary". Environmental Science & Technology 56, n.º 4 (31 de janeiro de 2022): 2421–31. http://dx.doi.org/10.1021/acs.est.1c07451.

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Park, Inyong, Hongsuk Kim e Seokhwan Lee. "Characteristics of tire wear particles generated in a laboratory simulation of tire/road contact conditions". Journal of Aerosol Science 124 (outubro de 2018): 30–40. http://dx.doi.org/10.1016/j.jaerosci.2018.07.005.

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He, Chuan, Wei Jiang, Tong Wang, Dongdong Yuan e Aimin Sha. "The evolution of tire-road wear particles and road surface texture under rolling friction". Construction and Building Materials 447 (outubro de 2024): 138167. http://dx.doi.org/10.1016/j.conbuildmat.2024.138167.

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Klöckner, Philipp, Thorsten Reemtsma, Paul Eisentraut, Ulrike Braun, Aki Sebastian Ruhl e Stephan Wagner. "Tire and road wear particles in road environment – Quantification and assessment of particle dynamics by Zn determination after density separation". Chemosphere 222 (maio de 2019): 714–21. http://dx.doi.org/10.1016/j.chemosphere.2019.01.176.

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Venghaus, Daniel, Johannes Wolfgang Neupert e Matthias Barjenbruch. "Tire Wear Monitoring Approach for Hotspot Identification in Road Deposited Sediments from a Metropolitan City in Germany". Sustainability 15, n.º 15 (5 de agosto de 2023): 12029. http://dx.doi.org/10.3390/su151512029.

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Plastic in the environment poses an increasing challenge. Microplastics, which include tire wear, enter the aquatic environment via different pathways, and increasing vehicle traffic leads to increased tire wear. This paper describes an approach for how inner-city tire wear hotspots can systematically be identified by sampling road-deposited sediments (RDS) by sweeping. Within the investigations herein described, six inner-city monitoring sites were sampled. The total masses of solids as well as the amount of styrene-butadiene rubber (SBR) representing Tire and Road Wear Particles (TRWP) were determined. It was shown that the sites differ significantly from each other with regard to SBR parts. The amount of SBR in the curve was on average eight times higher than in the slope, and in the area of the traffic lights, it was on average three times higher than in the slope. The RDS mass results also differ but with a factor of 2 for the curve and of 1.5 for the traffic light. The investigations and the corresponding results in this paper are unique, and the monitoring approach can be used in the future to derive and optimize sustainable measures in order to reduce the discharge of TRWP into the environment by road runoff.

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Chae, Eunji, e Sung-Seen Choi. "Quantification of tire tread wear particle in road dust through pyrolytic technique". Heliyon 9, n.º 7 (julho de 2023): e17796. http://dx.doi.org/10.1016/j.heliyon.2023.e17796.

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Azarov, V. K., A. V. Vasiliev, V. F. Kutenev e V. V. Stepanov. "The study of dynamics of emissions from road transport in Moscow from 2002 to 2030". Izvestiya MGTU MAMI 9, n.º 4-1 (20 de fevereiro de 2015): 5–11. http://dx.doi.org/10.17816/2074-0530-67139.

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The paper presents the study of materials on emissions from road transport in the major cities on the example of Moscow. It is a forecast of increase of emissions from the growth of the vehicle fleet up to 2030. It was shown significant excess of emissions of harmful solid particles in the exhaust gas, regulated UN rules and general particulate emissions from tire wear, brake systems and road- way, which are currently not regulated. There is the necessity of development of standards for thevaluation of their emissions.

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Pai, Dayananda, Anand Pai, Saahil Kumar e Anubhav Deb. "The response of two-wheeler tires to three-body wear phenomena by experimental simulation of off-road terrains". Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 233, n.º 13 (31 de janeiro de 2019): 3504–14. http://dx.doi.org/10.1177/0954407018825062.

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The operation of two wheelers frequently encounters off-road terrain comprising loose particles of sand and soil, which setup three-body abrasive wear phenomena affecting the tire life. To evaluate the response of two-wheeler tires on such terrains, the dry abrasive wear behavior of two-wheeler tires was experimentally determined using a three-body wear test apparatus. Three different mixtures of sand and granite dust of varying grit size, 100, 200, and 300 µm, were employed to represent the abrasive cluster, typical of the varying roughness on off-road terrains. Taguchi’s L27 (33) orthogonal array was applied to analyze the specific wear rate as a response to three parameters—load, speed, and road roughness—separately for front and rear two-wheeler tires. Variation of hardness and wear pattern observation for the front and rear tires were carried out to oversee the surface deterioration. A numerical model based on abrasive grit-tire surface interaction was developed for comparison with the experimental results.

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Rødland, Elisabeth S., Mats Gustafsson, David Jaramillo-Vogel, Ida Järlskog, Kathrin Müller, Cassandra Rauert, Juanita Rausch e Stephan Wagner. "Analytical challenges and possibilities for the quantification of tire-road wear particles". TrAC Trends in Analytical Chemistry 165 (agosto de 2023): 117121. http://dx.doi.org/10.1016/j.trac.2023.117121.

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Farroni, F., A. Sakhnevych e F. Timpone. "Physical modelling of tire wear for the analysis of the influence of thermal and frictional effects on vehicle performance". Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 231, n.º 1-2 (25 de setembro de 2016): 151–61. http://dx.doi.org/10.1177/1464420716666107.

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The tire and vehicle setup definition, able to optimise grip performance and thermal working conditions, can make the real difference as for motorsport racing teams, used to deal with relevant wear and degradation phenomena, as for tire makers, requesting for design solutions aimed to obtain enduring and stable tread characteristics, as finally for the development of safety systems, conceived in order to maximise road friction, both for worn and unworn tires. The activity discussed in the paper deals with the analysis of the effects that tire wear induces in vehicle performance, in particular as concerns the consequences that tread removal has on thermal and frictional tire behaviour. The physical modelling of complex tire–road interaction phenomena and the employment of specific simulation tools developed by the Vehicle Dynamics UniNa research group allow to predict the tire temperature local distribution by means of TRT model and the adhesive and hysteretic components of friction, thanks to GrETA model. The cooperation between the cited instruments enables the user to study the modifications that a reduced tread thickness, and consequently a decreased SEL (Strain Energy Loss) and dissipative tread volume, cause on the overall vehicle dynamic performance.

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Wu, Wei, Jun Ma, Dong Liu, Qiao Xu e Gang Li. "Scientific Knowledge Mapping and Thematic Evolution for Tire Wear Particles". Sustainability 15, n.º 1 (29 de dezembro de 2022): 583. http://dx.doi.org/10.3390/su15010583.

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In recent years, with the continuous increase of car ownership per capita, tire wear particles (TWPs) from road tire wear have been widely detected in various environmental media, and their environmental behavior and influence have attracted wide attention. Using the Web of Science Core Collection (WOSCC) as a literature search platform, we mapped the research progress of TWPs from publication trends, international cooperation, journal distribution, interdisciplinary areas, and research themes with scientific knowledge mapping methods. Publications in the TWP field have shown an increase year by year, with great contributions from researchers in the USA and Europe, but the efforts and progress of Chinese researchers cannot be ignored. Science of the Total Environment was the most active journal in this field, with 54 relevant articles published. The research area of TWPs was multidisciplinary in nature, with a focus on Environmental Science, Atmospheric Meteorology Science, and Environmental Engineering. The research topics were mainly composed of three thematic groups: suspended particulate matter, air pollution sources, and microplastics in the environment, and research hotspots shifted from particulate matter to microplastics over time. Future research needs to focus on the origin, properties, and transport and dispersion of TWPs in water, atmosphere, and soil environments and to analyze the environmental impacts and ecological risks.

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Koutny, F. "A Model for Tire Wear". Rubber Chemistry and Technology 64, n.º 5 (1 de novembro de 1991): 683–95. http://dx.doi.org/10.5254/1.3538582.

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Abstract Tire abrasion arises due to slip in the contact of the tread with the road, and so it is closely related to the conditions of the road surface and weather. An attempt at phenomenological modeling of the treadwear process has been presented. A simple differential equation is set up to capture the dependence of the groove depth on the sum of tangential slips. It is shown that stochastic components of the usual meteorological quantities (temperature and humidity) may be approximated with a Markov series. A random process is suggested to simulate these environmental effects. Analytical solution of the model equation gives the average course of the groove depth and its confidence limits due to environmental effects. A nonlinear parameter estimation problem is formulated and several methods for its solution indicated. Some recommendations for circumventing possible difficulties are given. The capability ofthe model has been demonstrated by modeling experimental data. Finally, some aspects of linearization and the consequent simplification are mentioned. Beyond the choice of adequate parameters to represent environmental effects, in particular, geographical regions, other questions remain. For example, structure of the model parameters a, b or their relationship to each other requires further effort. On the other hand, the scope of the present ideas may extend beyond the problem of tire treadwear, perhaps having application in the modeling of weathering problems.

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Guo, Dongdong, Hongyuan Wei, Yong Guo, Chuanqi Wang e Zenghui Yin. "Non-exhaust particulate matter emission from vehicles: A review". E3S Web of Conferences 268 (2021): 01015. http://dx.doi.org/10.1051/e3sconf/202126801015.

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According to the source, particulate matter produced during vehicle driving can be divided into exhaust emission and non-exhaust emission. Exhaust emission includes exhaust pipe emission and crankcase emission, while non-exhaust emission includes brake wear, tire wear, road wear and road dust. For a long time, it has been considered that the particulate matter pollution of motor vehicles mainly comes from exhaust emissions, and the control of particulate matter pollution in various countries is mainly concentrated in the tail gas. However, with the continuous tightening of emission standards, the emission of particulate matter has been reduced, but also makes the environmental pollution of non-exhaust particulate matter increasingly prominent. This paper summarizes the research on vehicle non-exhaust particulate matter emissions, aiming to emphasize the importance of non-exhaust particulate matter emissions and the necessity of legislation, so as to reduce their contribution to environmental particulate matter concentration.

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Kovochich, Michael, Jillian A. Parker, Su Cheun Oh, Jessica P. Lee, Stephan Wagner, Thorsten Reemtsma e Kenneth M. Unice. "Characterization of Individual Tire and Road Wear Particles in Environmental Road Dust, Tunnel Dust, and Sediment". Environmental Science & Technology Letters 8, n.º 12 (11 de novembro de 2021): 1057–64. http://dx.doi.org/10.1021/acs.estlett.1c00811.

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Kreider, Marisa L., Ken M. Unice e Julie M. Panko. "Human health risk assessment of Tire and Road Wear Particles (TRWP) in air". Human and Ecological Risk Assessment: An International Journal 26, n.º 10 (25 de outubro de 2019): 2567–85. http://dx.doi.org/10.1080/10807039.2019.1674633.

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Kreider, Marisa, Britt McAtee, Brent Finley e Julie Panko. "Effects of subacute inhalation exposure to tire and road wear particles in rats". Toxicology Letters 211 (junho de 2012): S79—S80. http://dx.doi.org/10.1016/j.toxlet.2012.03.306.

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Barr, Brian Charles, Hrund Ólöf Andradóttir, Throstur Thorsteinsson e Sigurður Erlingsson. "Mitigation of Suspendable Road Dust in a Subpolar, Oceanic Climate". Sustainability 13, n.º 17 (26 de agosto de 2021): 9607. http://dx.doi.org/10.3390/su13179607.

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Tire and road wear particles (TRWP) are a significant source of atmospheric particulate matter and microplastic loading to waterways. Road wear is exacerbated in cold climate by the widespread use of studded tires. The goal of this research was to assess the anthropogenic levers for suspendable road dust generation and climatic conditions governing the environmental fate of non-exhaust particles in a wet maritime winter climate. Sensitivity analyses were performed using the NORTRIP model for the Capital region of Reykjavík, Iceland (64.1° N). Precipitation frequency (secondarily atmospheric relative humidity) governed the partitioning between atmospheric and waterborne PM10 particles (55% and 45%, respectively). Precipitation intensity, however, increased proportionally most the drainage to waterways via stormwater collection systems, albeit it only represented 5% of the total mass of dust generated in winter. A drastic reduction in the use of studded tires, from 46% to 15% during peak season, would be required to alleviate the number of ambient air quality exceedances. In order to achieve multifaceted goals of a climate resilient, resource efficient city, the most important mitigation action is to reduce overall traffic volume. Reducing traffic speed may help speed environmental outcomes.

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Trofimenko, Yu V., e V. S. Chizhova. "Justification of Measures to Reduce the Health Risk from Air Pollution by Suspended Particles Less than Ten Micrometers (PM10) on the Urban Road Network". Ecology and Industry of Russia 23, n.º 7 (19 de julho de 2019): 48–51. http://dx.doi.org/10.18412/1816-0395-2019-7-48-51.

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A method for assessing the risk of air pollution by suspended particles smaller than ten micrometers (PM10) on the street road network (SRN) of the large city is presented. It includes an assessment of the intensity of the release and distribution in air of PM10, the sources of which are exhaust gases from vehicles with diesel engines, tire wear, and road surface wear. An assessment is made of the chronic and carcinogenic risk to public health from exposure to PM10 in the air in a roadside area. Substantiated measures to reduce the risk to public health from PM10 air pollution in the SRN.

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Lugon, Lya, Jérémy Vigneron, Christophe Debert, Olivier Chrétien e Karine Sartelet. "Black carbon modeling in urban areas: investigating the influence of resuspension and non-exhaust emissions in streets using the Street-in-Grid model for inert particles (SinG-inert)". Geoscientific Model Development 14, n.º 11 (18 de novembro de 2021): 7001–19. http://dx.doi.org/10.5194/gmd-14-7001-2021.

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Abstract. Black carbon (BC) is a primary and inert pollutant often used as a traffic tracer. Even though its concentrations are generally low at the regional scale, BC presents very high concentrations in streets (at the local scale), potentially with important effects on human health and the environment. Modeling studies of BC concentrations usually underestimate BC concentrations due to uncertainties in both emissions and modeling. Both exhaust and non-exhaust traffic emissions present uncertainties, but the uncertainties with respect to non-exhaust emissions, such as tire, brake, and road wear as well as particle resuspension, are particularly high. In terms of modeling, street models do not always consider the two-way interactions between the local and regional scales. Using a two-way modeling approach, a street with high BC concentrations may influence urban background concentrations above the street, which can subsequently enhance the BC concentrations in the same street. This study uses the multiscale Street-in-Grid model (SinG) to simulate BC concentrations in a suburban street network in Paris, taking the two-way coupling between local and regional scales into account. The BC concentrations in streets proved to have an important influence on urban background concentrations. The two-way dynamic coupling leads to an increase in BC concentrations in large streets with high traffic emissions (with a maximal increase of about 48 %) as well as a decrease in narrow streets with low traffic emissions and low BC concentrations (with a maximal decrease of about 50 %). A new approach to estimate particle resuspension in streets is implemented, strictly respecting the mass balance on the street surface. The resuspension rate is calculated from the available deposited mass on the street surface, which is estimated based on particle deposition and wash-off parameterizations adapted to street-canyon geometries. The simulations show that particle resuspension presents a low contribution to BC concentrations, as the deposited mass is not significant enough to justify high resuspension rates. Non-exhaust emissions, such as brake, tire, and road wear, may largely contribute to BC emissions, with a contribution that is equivalent to exhaust emissions. Here, a sensitivity analysis of BC concentrations is performed by comparing simulations with different emission factors of tire, brake, and road wear. The different emission factors considered are estimated based on the literature. We found a satisfying model–measurement comparison using high tire wear emission factors, which may indicate that the tire emission factors usually used in Europe are probably underestimated. These results have important policy implications: public policies replacing internal combustion engines with electric vehicles may not eliminate BC air pollution but only reduce it by half.

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Philippe, Florian, Maiqi Xiang, Martin Morgeneyer, Yan-Ming Chen, Pierre Charles, Frédéric Guingand e Christophe Bressot. "Emission rate assessment of airborne brake particles by characterization of the pad and disc surfaces from a pin-on-disc tribometer". Toxicology Research and Application 4 (1 de janeiro de 2020): 239784732097778. http://dx.doi.org/10.1177/2397847320977782.

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Particles from brake, road and tire wear contribute to about half of the emissions (PM10) of particulate traffic pollution. It is estimated that 50 to 70% of the brake debris material is transformed into an emission of polydisperse aerosols. In order to improve the understanding of the brake debris generation and its dependency on the brake material, the wear of a disc and a brake pad from a standard production car were studied. The disc was made of perlitic cast iron with lamellar graphite and subjected to standard braking cycles. Microscopic evaluation was performed on the disc track, as well as analyses by Energy Dispersive Spectroscopy (EDS). Finally, a metallographic section has been made in the longitudinal direction of friction to better understand the morphology. The study focuses on disc surface oxidation and morphology of a thin layer on both disc and pin surface. Particle concentrations increase with the friction power and the area of contact surface. The observations show that the generation of particles can be the result of the oxidation of the disc surface during friction by two- and three-body abrasion when braking.

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Mengistu, Demmelash, Claire Coutris, Kim Aleksander Haukeland Paus e Arve Heistad. "Concentrations and Retention Efficiency of Tire Wear Particles from Road Runoff in Bioretention Cells". Water 14, n.º 20 (14 de outubro de 2022): 3233. http://dx.doi.org/10.3390/w14203233.

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Bioretention cells are popular stormwater management systems for controlling peak runoff and improving runoff water quality. A case study on a functional large-scale bioretention cell and a laboratory column experiment was conducted to evaluate the concentrations and retention efficiency of bioretention cells towards tire wear particles (TWP). The presence of TWP was observed in all soil fractions (<50 µm, 50–100 µm, 100–500 µm, and >500 µm) of the functional bioretention cell. TWP concentrations were higher (30.9 ± 4.1 mg/g) close to the inlet to the bioretention cell than 5 m away (19.8 ± 2.4 mg/g), demonstrating the influence of the bioretention cell design. The column experiment showed a high retention efficiency of TWP (99.6 ± 0.5%) in engineered soil consisting of sand, silty-sand, and garden waste compost. This study confirmed that bioretention cells built with engineered soil effectively retained TWP > 25 µm in size, demonstrating their potential as control measures along roads.

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Panko, Julie M., Marisa L. Kreider, Britt L. McAtee e Christopher Marwood. "Chronic toxicity of tire and road wear particles to water- and sediment-dwelling organisms". Ecotoxicology 22, n.º 1 (22 de setembro de 2012): 13–21. http://dx.doi.org/10.1007/s10646-012-0998-9.

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Grosch, K. A. "Rubber Abrasion and Tire Wear". Rubber Chemistry and Technology 81, n.º 3 (1 de julho de 2008): 470–505. http://dx.doi.org/10.5254/1.3548216.

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Abstract Rubber abrasion is essentially a mechanical tearing process and has been linked with the rate of a cut growth process as function of the tearing energy dissipated in the contact area between rubber and track which leads inevitably to considerable temperature rises at the points of highest stress concentration i.e. at the points at which a mechanical detachment of abraded particles is most likely. This leads to thermal degradation and oxidation as important secondary mechanisms which may well decide whether a compound performs better or worse than a reference outweighing the mechanical properties. A laboratory method has been developed, using the LAT 100 test equipment, which uses the energy dissipation and slip speeds in the contact area of a rubber sample wheel, rotating under slip, to evaluate the abrasion performance of a compound over a wide range of these variables. The resulting equations can be used either to test directly the correlation between laboratory and road test results which is usually good over a limited range, or they are used in a road test simulation program with well defined road test conditions. The latter gives a set of single compound ratings and tire lives. These depend however strongly on the chosen test conditions and in that they reflect reality

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Bouredji, Abderrahmane, Bogdan Muresan, Xuan-Trinh Truong, Laurence Lumière, Jérémie Pourchez e Valérie Forest. "An in vitro comparison of the toxicological profiles of ground tire particles (TP) and actual tire and road wear particles (TRWP) emissions". Environment International 190 (agosto de 2024): 108885. http://dx.doi.org/10.1016/j.envint.2024.108885.

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Wei, Hongyuan, Chunling Wu, Xiaojun Jing, Xiaowei Wang, Fengyue Bai, Shan Wang, Wei Wang, Jinsong Li e Chong Wang. "Test method for particulate matter emissions from brake wear of light-duty vehicles: A review". E3S Web of Conferences 522 (2024): 01001. http://dx.doi.org/10.1051/e3sconf/202452201001.

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The Euro 7 emission standards for light-duty vehicles released at the end of 2022 have for the first time restricted the emission of non exhaust particulate matter from vehicles, which has attracted widespread attention from brake and tire manufacturers and vehicle manufacturers. Prior to this, there were few reports on the testing methods for brake wear particulate matter emissions in China, and most of them focused on studying the emission characteristics and composition of brake wear particulate matter emissions. This article reviews the testing methods for particulate matter emissions from light-duty vehicle braking wear at home and abroad, including methods based on inertia dyno bench, operating loss sealed chamber, actual road and pin-on-disc tribometer.

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Kang, Taewoo, e Hyeokjung Kim. "An Experimental Study on the Component Analysis and Variation in Concentration of Tire and Road Wear Particles Collected from the Roadside". Sustainability 15, n.º 17 (24 de agosto de 2023): 12815. http://dx.doi.org/10.3390/su151712815.

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Tire and road wear particles (TRWPs) are generated unintentionally while driving vehicles. The generated TRWPs move to various environments by environmental and mechanical action, and they are present in fresh water, river, and ocean and may cause problems to the environment and human health. In Korea, the number of registered cars is increasing year by year, so the problem of TRWPs will become serious. In this study, we study the concentrations of TRWPs generated from the roadsides by temperature difference, in order to reduce the generation of TRWPs. Dust samples were collected from roadsides during summer and winter to measure the amount of TRWPs generated on roadsides according to seasonal temperature changes. Dust particles of 75–150 µm size, which corresponds to the TRWP size, were separated from the dust samples using sieves. Additionally, only TRWPs were separated using a solution of dibromomethane and Trans-1,2-dichloroethylene. TRWPs accounted for <2% in the dust collected from roadsides, and their amount increased by approximately 7.6–24.2% in summer more than in winter. Thermogravimetric analysis results confirmed that the tire components and road components and minerals accounted for 30% and 70% in TRWPs regardless of the season, respectively.

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Rakhmanin, Yu A., e Aleksandr V. Levanchuk. "Hygienic assessment of atmospheric air in the areas with different degrees of the development of the road-traffic complex". Hygiene and sanitation 95, n.º 12 (28 de outubro de 2019): 1117–21. http://dx.doi.org/10.18821/0016-9900-2016-95-12-1117-1121.

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The paper presents the results of a study of the qualitative composition and quantity of pollutants in atmospheric air in the course of operational wear of the road surface, braking system and tire treads of automobiles. On the basis of field research in samples ofatmospheric air ofthe city of St. Petersburg there were identified compounds of heavy metals andpolycyclic aromatic hydrocarbons (PAHs). There was established the dependence of the level of air pollution on traffic flows in locations of the city. Pollutants were shown to enter the air environment mainly in the form offine dust particles. There was justified the need for the control ofproducts of wear the road traffic complex in the hygienic assessment of the quality of ambient air ofmegalopises.

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Jailaubekov, Yerkin A., Saltanat N. Amirgaliyeva, Ermek E. Baubekov, Natalia A. Yakovleva, Seilkhan A. Askarov e Asset J. Tazabekov. "Analysis of the amount and structure of solid particles PM released into the city’s atmospheric air by motor transport". Vibroengineering Procedia 54 (4 de abril de 2024): 244–51. http://dx.doi.org/10.21595/vp.2024.24011.

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Atmospheric air pollution with fine particles PM2.5 and PM10 is one of the main environmental problems of the city. This paper presents the results of the study of quantitative and structural components of solid particles’ emissions in the city of Almaty, released during the operation of cars: by an engine with exhaust gases, by tire abrasion, by braking devices (linings) and road pavement wear. РM solid particles in the amount of 543.2 tons are released annually into the atmospheric air of Almaty by motor transport. The bulk PM10 is released totally from the tires, brakes and road – 65.4 %, from the engine – 34.6 %. On diesel buses and trucks, the bulk РM particles’ emissions are released from the exhaust gas engines. Recommendations are given to reduce PM particles emitted by motor transport.

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Youn, Jong-Sang, Young-Min Kim, Muhammad Zain Siddiqui, Atsushi Watanabe, Sehyun Han, Sangmin Jeong, Yong-Won Jung e Ki-Joon Jeon. "Quantification of tire wear particles in road dust from industrial and residential areas in Seoul, Korea". Science of The Total Environment 784 (agosto de 2021): 147177. http://dx.doi.org/10.1016/j.scitotenv.2021.147177.

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