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Occurrence and backtracking of microplastic mass loads including tire wear particles in northern Atlantic air

Zenodo (CERN European Organization for Nuclear Research) 2024 Score: 35 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Goßmann, Isabel, Scholz-Böttcher, Barbara, Evangeliou, Nikolaos, Goßmann, Isabel, Herzke, Dorte, Goßmann, Isabel, Georgi, Christoph, Herzke, Dorte, Held, Andreas, Wurl, Oliver, Eckhardt, Sabine, Held, Andreas, Eckhardt, Sabine, Schulz, Janina, Eckhardt, Sabine, Held, Andreas, Schulz, Janina, Evangeliou, Nikolaos, Evangeliou, Nikolaos, Nikiforov, Vladimir, Nikiforov, Vladimir, Georgi, Christoph, Georgi, Christoph, Evangeliou, Nikolaos, Evangeliou, Nikolaos, Eckhardt, Sabine, Eckhardt, Sabine, Gerdts, Gunnar Gerdts, Gunnar Wurl, Oliver, Wurl, Oliver, Scholz-Böttcher, Barbara, Scholz-Böttcher, Barbara, Eckhardt, Sabine, Gerdts, Gunnar Gerdts, Gunnar

Summary

Researchers used active air sampling devices during a research cruise along the Norwegian coast to the Arctic to measure microplastic mass loads in the marine atmosphere, including tire wear particles, analyzed by pyrolysis-gas chromatography-mass spectrometry. They found microplastics were omnipresent even in remote Arctic sampling areas, with polyethylene terephthalate ubiquitous and tire wear particles reaching up to 35 ng/m3, and atmospheric transport models indicating both sea-based and land-based emission sources.

Polymers

PE PET PP PS PU rubber

Study Type Environmental

The pollution of microplastics (MP), including tire wear particles (TWP), in the marine atmosphere is receiving increasing attention, with more studies documenting their occurrence. However, there are knowledge gaps regarding mass-quantitative data and transport ways of MP in the marine atmosphere. In this study, we present two different active air sampling devices (low-volume and high-volume samplers) to evaluate the MP loads in the marine atmosphere. Samples were collected during a research cruise along the Norwegian coast up to Bear Island. During sampling and in the lab, operational and lab blanks were taken, and secondary contamination was thoroughly documented and implemented into this study. Air samples and blanks were analyzed with pyrolysis-gas chromatography-mass spectrometry, generating a mass-based data set of MP including TWP in the marine atmosphere. The study revealed an omnipresence of these pollutants, even in rather remote, arctic sampling areas. The polyethylene terephthalate cluster (max. 1.5 ng m‑3) was ubiquitous. TWP (max. 35 ng m‑3) and clusters of polystyrene, polypropylene, and polyurethane (max. 1.1 ng m‑3) were also detected. Two different atmospheric transport and dispersion models were applied to determine the origin of sampled air masses. These models suggested the introduction of MP into the marine atmosphere equally from sea (e.g., marine traffic, sea spray)- and land-based emissions. Hence, transforming the ocean from a previously assumed exclusive sink into a source for MP. Also see: https://micro2024.sciencesconf.org/557010/document

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