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61,005 resultsShowing papers similar to Characteristics of pollutants emitted by motor vehicles and their impact on the environment and engine operation
ClearAnalytical Investigation of Tire Induced Particle Emissions
This automotive engineering study measured the size distribution of fine dust particles (under 10 micrometers) generated by tire wear, finding that tire-derived particles represent a significant non-exhaust source of urban particulate matter. As electric vehicle adoption reduces exhaust emissions, tire and brake wear particles will become a proportionally larger component of urban air pollution. These tire wear particles are also a major source of microplastic contamination in road runoff.
Tire Wear and Pollutants: An Overview of Research
This review provides an overview of tire road and wear particles as a major source of microplastic emissions, examining both experimental and mathematical approaches to measuring tire wear. The study notes that while tire wear particles are found in alarming amounts across various environments, they remain less studied than other microplastics, and calls for more accurate simulation models to predict tire wear emissions.
Environmental occurrence, fate, impact, and potential solution of tire microplastics: Similarities and differences with tire wear particles
This review examines tire microplastics, one of the most abundant types of microplastics in the environment, which come from tire wear on roads, recycled tire rubber, and tire repair dust. These particles carry a complex mix of chemicals including heavy metals and organic pollutants that can harm aquatic and soil organisms. Since tire microplastics end up in waterways and soil near roads, they represent a significant but often overlooked source of human microplastic exposure.
Vehicle Emission Models and Traffic Simulators: A Review
This review surveys vehicle emission models and traffic simulation tools used to estimate air pollution from road traffic. While focused on exhaust emissions, the methods discussed are relevant to understanding non-exhaust pollution like tire wear microplastics, which are released in large quantities from vehicle tires. Better emission modeling could help quantify the full scope of traffic-related microplastic pollution in urban areas.
Contribution of Road Vehicle Tyre Wear to Microplastics and Ambient Air Pollution
This review finds that tire wear from road vehicles contributes one-third to one-half of all microplastics released unintentionally into the environment, with passenger cars generating about 110 milligrams per kilometer driven. Most tire particles end up in soil, but a portion becomes airborne, contributing 5-30% of road transport particulate matter emissions. Since the smallest tire particles can be inhaled, this is a significant and often overlooked source of daily microplastic exposure for people living near roads.
Measurement and Analysis of Brake and Tyre Particle Emissions from Automotive Series Components for High-Load Driving Tests on a Wheel and Suspension Test Bed
This is not primarily about microplastics — it is a vehicle emissions study measuring brake and tyre particle emissions (size distribution, mass, and composition) under high-load driving conditions on a test bed, focused on aerosol characterization and non-exhaust emissions regulation.
Microplastics from tyre and road wear A literature review
This literature review examines microplastics generated from tire and road wear, identifying road traffic as a significant but often overlooked source of plastic pollution in urban runoff and waterways. The authors assess what is known about tire particle composition, environmental fate, and potential ecological effects.
Risk assessment of tire wear in the environment – a literature review
This review assesses the environmental risks of tire wear emissions, which release microplastic-like particles containing polymers and potentially toxic chemicals into water and soil. While initial risk estimates suggest low risk from the particulate emissions themselves, the chemicals that leach from tire particles remain poorly characterized. The findings are relevant to human health because tire wear is one of the largest sources of microplastic pollution, and the leached chemicals may enter drinking water.
Pollution from Transport: Detection of Tyre Particles in Environmental Samples
This study reviews tyre wear particles as a major but underestimated source of microplastic pollution from road transport, describing methods for detecting these particles in environmental samples including road dust, waterways, and soils. The authors call for greater regulatory attention to tyre-derived emissions alongside other transport-related pollutants.
A review of rubber tyre derived micro- and nanoplastics: fate, impact and risks
This systematic review examines microplastics generated from rubber tire wear, which are a major but often overlooked source of microplastic pollution. Tire particles spread through air, stormwater, and wastewater to contaminate both land and water. This is an important human health concern because tire-derived microplastics contain toxic chemicals and are found in the air people breathe and the water they drink.
Tyre Wear Particles in the Environment: Sources, Toxicity, and Remediation Approaches
This review examines tire wear particles, which account for a major share of global microplastic pollution with 1.3 million metric tons released annually in Europe alone. These rubber-based particles contain heavy metals and toxic organic chemicals that contaminate air, water, and soil, and human exposure occurs through inhaling dust, eating contaminated food, and drinking water, raising concerns about respiratory, cardiovascular, and cancer risks.
Characteristics of Vehicle Tire and Road Wear Particles’ Size Distribution and Influencing Factors Examined via Laboratory Test
Researchers conducted laboratory tests to characterize the size distribution of tire and road wear particles under various conditions. The study found that factors such as driving speed, tire composition, and road surface characteristics significantly influence the size and quantity of wear particles released, which are a growing source of microplastic pollution.
Review of Health Effects of Automotive Brake and Tyre Wear Particles
This review summarizes what is known about the health effects of brake dust and tire wear particles, which are now the largest transport-related sources of particulate air pollution in cities. Tire microplastics are also the biggest contributor of unintentionally released microplastics in the environment, and the review examines their effects on human cells and organisms as the EU introduces the first worldwide limits on these emissions.
Mechanism of microplastic and nanoplastic emission from tire wear
Scientists showed that normal tire wear produces two distinct populations of plastic particles: smaller airborne nanoplastics that stay suspended in the air, and larger microplastics that settle to the ground. Nanoplastic emissions increase dramatically with vehicle speed and weight, and electric charge keeps the smallest particles floating in the air where they can be inhaled. This research identifies tire wear as a major and previously underappreciated source of breathable nanoplastic pollution.
Measures to reduce the spread of microplastic particles from tyre wear : On vehicles, on the road and in the roadside environment
Researchers reviewed measures to reduce the spread of microplastic particles from tyre wear at the vehicle, road, and roadside environment levels, examining the transport pathways via air, water, and snow and the risks these persistent, potentially toxic particles pose to ecosystems and human health.
Vehicle Emission Models and Traffic Simulators: A Review
This review covers vehicle emission models and traffic simulation tools used to estimate air pollution from road traffic. While not directly about microplastics, vehicle emissions include tire and brake wear particles that are a major source of microplastics in urban environments. Better emission modeling helps researchers understand the full scope of pollution, including microplastic-generating particulate matter, from transportation.
Characteristics of Real-world Non-exhaust Particulates from Vehicles
Researchers characterized non-exhaust particulate emissions from vehicle tire and road wear, collecting atmospheric PM samples with a high-volume quartz filter sampler and using pyrolysis-GC/MS to analyze tire rubber markers including polycyclic aromatic hydrocarbons and heavy metals, quantifying the contribution of tire-brake-road wear particles to urban air pollution.
On-Road Vehicle Measurement of Tire Wear Particle Emissions and Approach for Emission Prediction
An instrumented measurement vehicle was developed to quantify tire wear particle emissions under real-world on-road conditions, identifying key driving parameters such as speed, load, and cornering that govern emission rates. The study supports the development of emission factors and regulatory standards for non-exhaust tire-derived microplastic pollution.
Environmental Issues Related to Automobile Transport
This paper reviews the major environmental impacts of automobile transport including greenhouse gas emissions, smog, soil contamination with heavy metals, and microplastic pollution from tire wear, with discussion of public health effects and potential mitigation strategies.
Tyre and road wear particles (TRWP) - A review of generation, properties, emissions, human health risk, ecotoxicity, and fate in the environment
This comprehensive review compiles current knowledge on tyre and road wear particles, which are generated during driving and contribute to both airborne emissions and microplastic pollution. Researchers found that per-capita tyre wear emissions range from 0.2 to 5.5 kilograms per person per year, with particles ending up in soils, waterways, and the air. While the risk from inhaling these particles appears low, the potential health effects from ingesting them through the food chain remain largely unknown.
Tire wear particles in different water environments: occurrence, behavior, and biological effects—a review and perspectives
This review examines tire wear particles, a major but often overlooked source of microplastics in water environments. Tire particles release toxic chemicals as they break down in water and can harm aquatic organisms, but most research has focused only on the chemical leachate rather than the particles themselves. Since tire wear contributes a large share of total microplastic pollution, understanding its full impact on water ecosystems and the food chain is important for human health.
Environmental Pollution and Impact of Highways During Operation
This review examines how highway operation generates environmental pollution including exhaust gases, heavy metals, oil products, and microparticles from tire wear, road dust, and road markings. The paper surveys European research on these micropollutants and their pathways into soils and waterways.
Static modelling of the material flows of micro- and nanoplastic particles caused by the use of vehicle tyres
Researchers modeled the flow of tyre wear particles in Austria, finding that about 6% of tyre rubber is released as wear particles into the environment each year, with emissions entering air, soil, and surface water. The study estimated that of the 21,200 tonnes released annually, about 6% are microscale particles and 0.3% are nanoscale, and concluded that reducing overall vehicle mileage would be the most effective way to cut these emissions.
[Black microplastics in the environment: Origin, transport and risk of tire wear particles].
This review examines the origin, environmental transport, and health risks of tire wear particles (TWP) — black microplastics shed from vehicle tires — which disperse widely into air, soil, rivers, and food chains as vehicle ownership increases.