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Car and truck tire wear particles in complex environmental samples – A quantitative comparison with “traditional” microplastic polymer mass loads

The Science of The Total Environment 2021 186 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Isabel Goßmann, Isabel Goßmann, Isabel Goßmann, Isabel Goßmann, Isabel Goßmann, Maurits Halbach, Maurits Halbach, Maurits Halbach, Maurits Halbach, Barbara M. Scholz‐Böttcher Isabel Goßmann, Isabel Goßmann, Isabel Goßmann, Isabel Goßmann, Isabel Goßmann, Isabel Goßmann, Isabel Goßmann, Isabel Goßmann, Maurits Halbach, Maurits Halbach, Maurits Halbach, Isabel Goßmann, Isabel Goßmann, Isabel Goßmann, Maurits Halbach, Isabel Goßmann, Barbara M. Scholz‐Böttcher Isabel Goßmann, Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Isabel Goßmann, Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Isabel Goßmann, Isabel Goßmann, Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Maurits Halbach, Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Maurits Halbach, Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher Barbara M. Scholz‐Böttcher

Summary

Researchers extended an existing Py-GC/MS method to include tire wear particles (TWP) alongside conventional microplastics in North Sea samples, finding that TWP represent a dominant mass fraction of environmental MPs often excluded from polymer-based surveys.

Polymers

PE PP rubber

Study Type Environmental

Tire wear particles (TWP) are assumed to be the most dominant source of environmental microplastics (MP). Besides rubber components around 60% of tires are additives such as filling material and various chemicals added for vulcanization. The inevitably released TWP in daily traffic are therefore considered a threat to the ecosystem. Nevertheless, published studies on MP mass loads often exclude elastomers. Data concerning composition and concentrations of TWP compared to prominent "traditional" MP polymers, such as polyethylene, polypropylene, poly(ethylene terephthalate) and poly(vinyl chloride), are missing. Identification and quantification of TWP was implemented in an existing pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS) method for MP determination. An approach to differentiate between car and truck tire wear and to quantify their respective mass loads is presented. Complex environmental samples such as road dust, fresh water and marine sediments, blue mussels, and marine salts were partly retrospectively analyzed using Py-GC/MS. The results showed ratios of car to truck tire wear up to 16 to 1 and underline the dominance of car compared to truck tire wear mass loads in all analyzed samples. Even though some retrospective data sets might be affected by suboptimal density separation conditions (NaBr, ρ = 1.5 g/cm), TWP concentrations in road dust clearly exceeded those of "traditional" MP (Ø 5 g TWP vs 0.3 g MP per kg road dust (dry weight). Samples included in this study, which were archived further away from TWP sources such as roads, reflected decreasing TWP concentrations (Ø 24 μg TWP vs. 107 μg MP per kg sediment (dry weight); Ø 126 μg TWP vs. 378 μg MP per kg marine salt) or were no longer present (blue mussels), while "traditional" polymers were still ubiquitously distributed.

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