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Exploration of occurrence and sources of microplastics (>10 μm) in Danish marine waters

The Science of The Total Environment 2022 57 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.
Kristian Syberg Kristian Syberg Yuanli Liu, Yuanli Liu, Yuanli Liu, Kristian Syberg Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Alvise Vianello, Alvise Vianello, Alvise Vianello, Alvise Vianello, Yuanli Liu, Kristian Syberg Alvise Vianello, Alvise Vianello, Yuanli Liu, Claudia Lorenz, Claudia Lorenz, Alvise Vianello, Claudia Lorenz, Claudia Lorenz, Alvise Vianello, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Yuanli Liu, Yuanli Liu, Claudia Lorenz, Kristian Syberg Jes Vollertsen, Kristian Syberg Yuanli Liu, Claudia Lorenz, Alvise Vianello, Alvise Vianello, Alvise Vianello, Alvise Vianello, Claudia Lorenz, Claudia Lorenz, Kristian Syberg Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Asbjørn Haaning Nielsen, Kristian Syberg Kristian Syberg Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Alvise Vianello, Claudia Lorenz, Alvise Vianello, Torkel Gissel Nielsen, Alvise Vianello, Alvise Vianello, Alvise Vianello, Alvise Vianello, Alvise Vianello, Alvise Vianello, Alvise Vianello, Alvise Vianello, Claudia Lorenz, Alvise Vianello, Alvise Vianello, Alvise Vianello, Alvise Vianello, Alvise Vianello, Claudia Lorenz, Alvise Vianello, Claudia Lorenz, Claudia Lorenz, Alvise Vianello, Claudia Lorenz, Claudia Lorenz, Alvise Vianello, Claudia Lorenz, Claudia Lorenz, Alvise Vianello, Jes Vollertsen, Alvise Vianello, Claudia Lorenz, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Claudia Lorenz, Alvise Vianello, Claudia Lorenz, Jes Vollertsen, Alvise Vianello, Alvise Vianello, Alvise Vianello, Alvise Vianello, Alvise Vianello, Jes Vollertsen, Alvise Vianello, Kristian Syberg Jes Vollertsen, Claudia Lorenz, Torkel Gissel Nielsen, Kristian Syberg Jes Vollertsen, Kristian Syberg Kristian Syberg Jes Vollertsen, Kristian Syberg Alvise Vianello, Asbjørn Haaning Nielsen, Claudia Lorenz, Jes Vollertsen, Torkel Gissel Nielsen, Claudia Lorenz, Claudia Lorenz, Alvise Vianello, Alvise Vianello, Jes Vollertsen, Torkel Gissel Nielsen, Claudia Lorenz, Claudia Lorenz, Alvise Vianello, Jes Vollertsen, Claudia Lorenz, Alvise Vianello, Kristian Syberg Claudia Lorenz, Claudia Lorenz, Alvise Vianello, Claudia Lorenz, Claudia Lorenz, Kristian Syberg Kristian Syberg Kristian Syberg Kristian Syberg Kristian Syberg Kristian Syberg Kristian Syberg Kristian Syberg Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Torkel Gissel Nielsen, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Claudia Lorenz, Alvise Vianello, Alvise Vianello, Alvise Vianello, Alvise Vianello, Alvise Vianello, Torkel Gissel Nielsen, Alvise Vianello, Alvise Vianello, Torkel Gissel Nielsen, Alvise Vianello, Alvise Vianello, Torkel Gissel Nielsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Torkel Gissel Nielsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Asbjørn Haaning Nielsen, Asbjørn Haaning Nielsen, Kristian Syberg Asbjørn Haaning Nielsen, Asbjørn Haaning Nielsen, Asbjørn Haaning Nielsen, Asbjørn Haaning Nielsen, Asbjørn Haaning Nielsen, Kristian Syberg Kristian Syberg Jes Vollertsen, Kristian Syberg Jes Vollertsen, Asbjørn Haaning Nielsen, Alvise Vianello, Jes Vollertsen, Jes Vollertsen, Torkel Gissel Nielsen, Claudia Lorenz, Alvise Vianello, Alvise Vianello, Alvise Vianello, Kristian Syberg Alvise Vianello, Jes Vollertsen, Torkel Gissel Nielsen, Jes Vollertsen, Claudia Lorenz, Claudia Lorenz, Torkel Gissel Nielsen, Asbjørn Haaning Nielsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Asbjørn Haaning Nielsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Asbjørn Haaning Nielsen, Jes Vollertsen, Jes Vollertsen, Torkel Gissel Nielsen, Kristian Syberg Kristian Syberg Torkel Gissel Nielsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Claudia Lorenz, Alvise Vianello, Jes Vollertsen, Torkel Gissel Nielsen, Kristian Syberg Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Alvise Vianello, Jes Vollertsen, Alvise Vianello, Jes Vollertsen, Jes Vollertsen, Alvise Vianello, Torkel Gissel Nielsen, Alvise Vianello, Torkel Gissel Nielsen, Jes Vollertsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Asbjørn Haaning Nielsen, Torkel Gissel Nielsen, Jes Vollertsen, Torkel Gissel Nielsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Torkel Gissel Nielsen, Alvise Vianello, Kristian Syberg Kristian Syberg Torkel Gissel Nielsen, Torkel Gissel Nielsen, Claudia Lorenz, Claudia Lorenz, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Kristian Syberg Kristian Syberg Kristian Syberg Kristian Syberg Kristian Syberg Kristian Syberg Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Kristian Syberg Asbjørn Haaning Nielsen, Asbjørn Haaning Nielsen, Asbjørn Haaning Nielsen, Kristian Syberg Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Alvise Vianello, Alvise Vianello, Alvise Vianello, Alvise Vianello, Claudia Lorenz, Kristian Syberg Kristian Syberg Kristian Syberg Asbjørn Haaning Nielsen, Claudia Lorenz, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Claudia Lorenz, Torkel Gissel Nielsen, Claudia Lorenz, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Torkel Gissel Nielsen, Jes Vollertsen, Kristian Syberg Kristian Syberg Alvise Vianello, Kristian Syberg Kristian Syberg Kristian Syberg Kristian Syberg Alvise Vianello, Kristian Syberg Kristian Syberg Alvise Vianello, Kristian Syberg Torkel Gissel Nielsen, Jes Vollertsen, Torkel Gissel Nielsen, Torkel Gissel Nielsen, Claudia Lorenz, Jes Vollertsen, Jes Vollertsen, Alvise Vianello, Alvise Vianello, Jes Vollertsen, Jes Vollertsen, Kristian Syberg

Summary

Microplastics larger than 10 micrometers were quantified in Danish marine waters of the Kattegat and southern Skagerrak, an area receiving Baltic Sea inflow and urban runoff from Copenhagen and Malmö. The study establishes baseline concentrations and identifies urban and riverine inputs as key sources to these regional seas.

Microplastics (MPs) were quantified in Danish marine waters of the Kattegat and the southernmost part of Skagerrak bordering to it. Kattegat is a waterbody between Denmark and Sweden that receives inflow from the Baltic Sea and direct urban runoff from the metropolitan area of Copenhagen and Malmö. MPs were measured in 14 continuous transects while steaming between monitoring stations. MP levels tended to be highest close to the Copenhagen-Malmö area, albeit this was more obvious from the abundance of particles rather than mass. The outcome of the measurements allowed a rough MP budget in the Danish Straits region, suggesting that urban waste- and stormwater discharges could not be neglected as potential MP source in these waters. The marine samples were collected by pumping and filtering water over 10 μm steel filters, hereby sampling a total of 19.3 m3. They were prepared and analyzed by FPA-μFTIR imaging, and the scans interpreted to yield MP size, shape, polymer type, and estimated mass. The average concentration was 103 ± 86 items m−3, corresponding to 23.3 ± 28.3 μg m−3 (17–286 items m−3; 0.6–84.1 μg m−3). Most MPs were smaller than 100 μm and fragments dominated the samples. The carbonyl index was assessed for polyolefins, showing that oxidation increased with decreasing MP size, but did not correlate with distance to urban areas. A rough budget of MP in the Danish Straits region suggested that MPs discharged from urban waste- and stormwaters were an import source of MPs.

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