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Abundance and composition of near surface microplastics and plastic debris in the Stockholm Archipelago, Baltic Sea

Marine Pollution Bulletin 2017 231 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Martin Ogonowski, Martin Ogonowski, Berit Gewert, Martin Ogonowski, Martin Ogonowski, Berit Gewert, Berit Gewert, Martin Ogonowski, Martin Ogonowski, Berit Gewert, Martin Ogonowski, Martin Ogonowski, Martin Ogonowski, Martin Ogonowski, Martin Ogonowski, Matthew MacLeod Martin Ogonowski, Andreas Barth, Matthew MacLeod Matthew MacLeod Matthew MacLeod Matthew MacLeod Matthew MacLeod Martin Ogonowski, Martin Ogonowski, Martin Ogonowski, Martin Ogonowski, Martin Ogonowski, Andreas Barth, Andreas Barth, Andreas Barth, Matthew MacLeod Matthew MacLeod Matthew MacLeod Andreas Barth, Andreas Barth, Berit Gewert, Berit Gewert, Matthew MacLeod Matthew MacLeod Andreas Barth, Andreas Barth, Matthew MacLeod Matthew MacLeod Martin Ogonowski, Matthew MacLeod Martin Ogonowski, Martin Ogonowski, Martin Ogonowski, Matthew MacLeod

Summary

This study combined professional manta trawl sampling and citizen science transect surveys to characterize microplastic abundance and composition in the Stockholm Archipelago and Baltic Sea. The results provide baseline data on plastic contamination in Baltic surface waters and demonstrate that citizen science can complement formal monitoring efforts.

Polymers

PE PP

We collected plastic debris in the Stockholm Archipelago using a manta trawl, and additionally along a transect in the Baltic Sea from the island of Gotland to Stockholm in a citizen science study. The samples were concentrated by filtration and organic material was digested using hydrogen peroxide. Suspected plastic material was isolated by visual sorting and 59 of these were selected to be characterized with Fourier transform infrared spectroscopy. Polypropylene and polyethylene were the most abundant plastics identified among the samples (53% and 24% respectively). We found nearly ten times higher abundance of plastics near central Stockholm than in offshore areas (4.2×105plastics km-2 compared to 4.7×104plastics km-2). The abundance of plastic debris near Stockholm was similar to urban areas in California, USA, and the overall abundance in the Stockholm Archipelago was similar to plastic abundance reported in the northwestern Mediterranean Sea.

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