Minimising Environmental Impacts of Tyre and Road Wear Particles
Tyre wear particles are considered as microplastics (MP). Huge amount of such MPs are released in the environment in the form of Tyre and Road Wear Particles (TRWP) on roads globally. In Europe alone >1 million tons of TRWP are released per year. Recent studies (https://doi.org/10.1016/j.scitotenv.2020.137823) show that the annual emissions of tyre wear for numerous countries show per-capita-masses ranging from 0.2 to 5.5 kg/(capita).
MP particles are ingested by various organisms such as aquatic species. Chemicals associated with tyre wear their ecological as well as human health risks (via food chains) are of concern. A recent (2020) article in Science (https://doi.org/10.1126/science.abd6951) highlighted that a tyre-rubber chemical 6PPD (N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine), which is globally ubiquitous in road runoff, is highly toxic to salmon fish. This explained the so-called “urban stream syndrome”—an acute mortality phenomenon that has affected Pacific Northwest coho salmon (Oncorhynchus kisutch) for decades. This has triggered global effort towards better understanding of the fate and effects of tyre wear constituents and chemicals.Baensch-Baltruschat et al. (2020) reported (https://doi.org/10.1016/j.scitotenv.2020.137823) that typically tyre tread contain 40 to 50 mass % as natural and synthetic rubber, 30 to 35 mass % as fillers (e.g. soot/black carbon, silica and chalk) and about 15 % softeners (oil and resins), and remaining 5 to10 mass % as vulcanisation agents and additives including plasticiser, preservatives and other chemicals. Therefore, potentially the tyre wear particles can release a range of chemicals in the environment.
photo by Shadrach Warid/Unsplash
The Chemistry and the Environment Division of IUPAC (Division VI) along with the Polymer Division and the Analytical Chemistry Division have been making timely and authoritative contributions towards solutions to the interactable problems associated with waste materials including microplastics and chemicals associated with waste materials, e.g. IUPAC project 2019-026-2-600 which will serve as an excellent platform to build this project on.
Therefore, the IUPAC Division VI and Korean Society of Analytical Science sponsored conference (APCE & CECE & ITP 2022) at Angkor Wat (Cambodia) on 6-10 November 2022 (www.APCE2022.org; www.CE-CE.org; www.ITP2022.org), offers an excellent opportunity for a symposium aiming at highlighting how chemistry play a significant role in reducing environmental impacts of chemicals associated with wastes such as tyre chemicals and tyre wear particles.
For more information and comments, contact Task Group Chair Divina Navarro <Divina.Navarro@csiro.au>
©2022 IUPAC & De Gruyter. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. For more information, please visit: http://creativecommons.org/licenses/by-nc-nd/4.0/
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Articles in the same Issue
- Masthead - Full issue pdf
- Features
- IUPAC from A Young Chemist’s Perspective
- Artificial Intelligence and Chemistry
- Physical Organic Chemistry in the 21st Century: A Q1 Progress Report
- Hidden HERstory—Helen Stevens
- IUPAC Wire
- The International Year of Basic Sciences for Sustainable Development proclaimed by the UN for 2022
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- Solvay awards €300k science prize to Katalin Karikó
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