Microplastics in sediments on the Norwegian Continental Shelf II: Identification through FT-IR analysis

During the regional environmental sediment monitoring on the Norwegian Continental Shelf on behalf of the oil & gas industry in 2017, 35 sediment samples from a large geographical area were sampled, covering the central North Sea, northern North Sea and the Barents Sea. The sediment samples were analyzed at the Norwegian Geotechnical Institute (NGI) for potential maximum microplastic abundance (with a particle size ranging from 45 μm to 5 mm) as described in DNV GL (2018).

This earlier analysis was based on the assumption that all particles with a density less than the density separation fluid of 1.53 g/mL, having a size range between 45 μm and 5 mm, and resilience to an organic matter digestion process, potentially could be microplastics. As mentioned in the report, this conservative estimate could also include other materials such as soot, char, porous glass and ceramics, as well as resistant organic matter with regards to the organic matter digestion process.


Type:
Rapport
Nummer:
M-1231
Språk:
EN

Publisert:
13.02.2019 00:00:00
Forfatter:
NGI, DNV GL
Omfang:
108 s.

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Dokumentformat: .pdf

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