Research analysing 850+ studies reveals fragmented methodologies hampering understanding of environmental impact

Scientists have called for urgent standardisation of methods used to measure and assess tyre wear emissions, following publication of what they describe as the most comprehensive review of research in the field to date.

The "State of Knowledge" series, which analysed more than 850 peer-reviewed scientific publications spanning four decades, has revealed significant gaps and inconsistencies in current understanding of how tyres shed particles and chemicals during use.

The research highlights how fragmented approaches across different studies have prevented scientists from drawing definitive conclusions about the environmental and health impacts of tyre wear emissions, which occur when tyres interact with road surfaces during driving.

"The topic of tyre wear emissions is extremely complex, multi-dimensional, and unfortunately only partially understood," said Dr Stephan Wagner, one of the paper's lead authors. "Until these gaps are closed, there is a growing concern that decisions about tyre emissions could be based on incomplete science."

The first two papers in the three-part series focus on characterising tyre wear emissions and assessing their environmental impact. A third paper examining potential health impacts is expected later this year.

The research, supported by the Tire Industry Project - part of the World Business Council for Sustainable Development - found that tyre wear creates not just particles but also releases volatile compounds and dissolved chemicals that can leach into the environment.

Current data suggests the risk from most tyre and road wear particles in water and soil is "generally lower down the priority list", according to the environmental risk assessment paper. However, researchers said insufficient data exists on tyre leachables and volatile compounds to make a full assessment.

The studies propose a tiered measurement framework and call for harmonised testing protocols to enable meaningful comparisons between different research efforts.

"The SOK underscores why we need a concerted, multi-stakeholder response to close the knowledge gaps, now more than ever," said Larisa Kryachkova, executive director at the Tire Industry Project.

The research comes as regulators worldwide grapple with how to address microplastic pollution, including particles from tyre wear. The European Union has been considering regulations on tyre emissions as part of broader environmental protection measures.

The authors suggest existing frameworks for assessing microplastics could provide a starting point for developing tyre emission guidelines, with modifications to account for the unique characteristics of tyre wear materials.

"We hope that these papers will encourage the scientific community and serve as a catalyst for further research and standardisation," Wagner concluded.

The Tire Industry Project plans to host a research conference at MIT in Boston to promote collaborative approaches to addressing the knowledge gaps identified in the review.

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The Association of Natural Rubber Producing Countries (ANRPC) recently hosted a high-level delegation from the Rubber Development Division of the Ministry of Plantation and Commodities Malaysia at the ANRPC Secretariat. Led by Peter Dennis of Malaysia’s Rubber Development Division, the group met with ANRPC Secretary-General Dr Suttipong Angthong and his team.

The discussions centred on essential industry issues, particularly the vital importance of achieving stable rubber prices for the benefit of producers and the broader market. Conversations further delved into analysing recent market trends and their consequences for global production and trade dynamics.

This engagement highlighted the ongoing necessity for cooperative action to address sectoral challenges, advance sustainability and ensure resilient growth in the face of variable economic conditions.

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Bridgestone Americas has unveiled its latest flagship winter tyre, the Blizzak IcePeak, which will launch nationwide in May 2026. This new tyre is distinguished as the first from Bridgestone to achieve both the rigorous 3-Peak Mountain Snowflake and Ice Grip certifications, marking a significant advancement in winter performance. Designed to cater to a broad range of vehicles – including sedans, minivans, CUVs, SUVs and trucks – the IcePeak will replace the Blizzak WS90 and DM-V2 models. It will be available in 107 sizes, ultimately covering approximately 97 percent of the US light-duty vehicle market, with the majority of sizes ready at launch.

The tyre’s development centres on delivering superior winter traction alongside improved durability and efficiency, leveraging the company’s ENLITEN technology. This integration aims to lower rolling resistance for better fuel economy and extend tyre wear life, offering long-term cost savings for drivers. Internal testing indicates the IcePeak surpasses the wear life of its predecessors while maintaining effective traction. Its compatibility extends to conventional, hybrid and electric vehicles, emphasising its modern engineering.

Key to its performance is a suite of specialised technologies. Bridgestone’s patented MultiCell compound is engineered to enhance stopping power on ice, a claim validated by the official Ice Grip certification. This certification requires performance on ice to exceed a standard reference tyre by at least 18 percent in braking tests. For snow traction, the tyre employs optimised tread blocks and full-depth 3D sipes to create additional biting edges, helping vehicles gain grip and reduce spin.

Building upon the Blizzak lineage, which spans nearly four decades of innovation, the IcePeak introduces refined design elements. Its optimised compound is formulated for added durability across multiple winter seasons without sacrificing grip. A newly unified global tread pattern incorporates several critical features: strategically placed sipes are angled to maximise the gripping edge, protrusions on tread blocks prevent water intrusion on ice and micro-grooves help clear the thin water film that forms on icy surfaces. Together, these features aim to provide drivers with reliable control in wet, snowy and icy conditions, advancing the brand’s reputation for winter safety and performance.

Ian McKenney, Senior Product Manager, Bridgestone Americas, said, “Our Blizzak tyre lineup moves from strength to strength, continually raising the standard for impressive winter weather control. With the application of ENLITEN technology, we are able to expand the tyres’ performance envelope in all directions while also delivering greater durability and reduced rolling resistance, while promoting a focus on enhanced sustainability.”

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Citira, a circular tyre management provider, is introducing a nationwide emergency tyre service in Sweden for commercial fleets, a strategic move to become a comprehensive tyre management partner. Named Citira 24/7 Däckjour, it provides a dedicated contact point for heavy vehicle operators needing immediate assistance, day or night.

This service connects customers to an established, quality-assured network of professional tyre workshops across the country. By utilising pre-assembled replacement wheels ready for immediate deployment, the system ensures rapid on-site repairs to maximise vehicle uptime and minimise operational disruptions.

Clients also benefit from predictable, agreed-upon pricing and consolidated billing, which simplifies administration and enhances budget control. This integrated offering is designed to streamline daily operations, reduce downtime and deliver a more seamless support experience for truck and bus companies.

Göran Bengtsson, Head of Sales at Citira Sweden, said, “This is an important milestone for us to be to able offer our Swedish heavy vehicle fleet customers. This has been frequently requested to us, and we are happy to be able meet the demand, providing a new level of reliability and convenience for our customers.”

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Michelin has unveiled the X-Ice Snow+ tyre, a premier winter product designed to meet the heightened demands of modern, unpredictable winter weather. This new offering provides increased performance and durability over its predecessor, specifically engineered to tackle severe seasonal challenges. Its advanced FLEX-ICE 3.0 tread compound optimises braking performance across a spectrum of conditions, including ice, snow and both wet and dry roads, ensuring reliable control during freezing rain or on treacherous black ice.

The tyre's proven tread design delivers superior start-up traction in deep snow compared to three leading competitors and offers strong lateral grip for stability on slick, icy corners. Beyond immediate safety, the X-Ice Snow+ is built for long-term value and efficiency. It achieves an extended tread life, lasting more than 26 percent longer than key rival tyres. Furthermore, through a specialised low-energy-loss compound that minimises rolling resistance, it delivers up to 34 percent better efficiency, which supports fuel savings and extends electric vehicle range without sacrificing winter traction. Passenger comfort is enhanced by proprietary Piano Acoustic Tuning Technology, a system engineered to reduce road noise for a quieter ride.

Available for dealer order starting in May 2026 for the winter selling season, the Michelin X-Ice Snow+ tyre will be produced in 15- to 23-inch sizes to accommodate a broad range of vehicles, including sedans, CUVs, SUVs, pickups and both hybrid and electric models.

Omer Waysman, Vice President – B2C Marketing, Michelin North America, Inc, said, “For more than 130 years, Michelin has continued to push the boundaries of innovation by improving our technologies to meet the needs of mobility across the globe. With the new Michelin X-Ice Snow+ tyre, we have taken everything drivers loved about the previous generation tyre and improved key areas. This new tyre delivers excellent winter performance, longer-lasting durability and greater efficiency, giving drivers a dependable advantage when the weather is at its worst.”

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