Tiny plastic particles can be found in the air over the oceans even far away from the coast. According to a new study, microplastics are not only carried by the wind, but also escape into the atmosphere from seawater. Researchers present data on the composition and sources of different types of plastic in the air over the North Atlantic and the origin of the particles.
Tiny plastic particles can be found in the sea air even far from coasts, according to a study recently published in the journalMicroplastic particles are present in the marine atmosphere even in remote parts of the world. These tiny particles come from land sources but are also re-emitted into the atmosphere from the sea, a study by a team of German and Norwegian researchers led by Dr Barbara Scholz-Böttcher of the University of Oldenburg has shown.
The analysis revealed the omnipresence of polyester particles. Polyethylene terephthalate particles, which presumably entered the atmosphere in the form of textile fibres, were detected in all samples. Other plastic types were also present, including polypropylene polycarbonate and polystyrene. Tire wear particles, the tiny debris abraded from tires during driving and especially braking, were identified as another major source of microplastics.
Until now, little was known about microplastics pollution levels including tire wear particles in the marine atmosphere."There are only a handful of studies on the concentration of these pollutants in the air," said team leader Scholz-Böttcher."Our model calculations indicate that the microplastics in the marine atmosphere come from direct sources on the land as well as from the sea," she added.
In addition to researchers from the ICBM, scientists from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research in Bremerhaven, the Technische Universität Berlin, the Norwegian Institute for Air Research and the Norwegian Institute of Public Health were also part of the research team.
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