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Sediment samples for chemical analyzes have been collected on voyages with the Norwegian Institute of Marine Research's own vessels under the auspices of several different projects, including the MAREANO programme. Multicorer, box sampler and Van Veen grab are used for sampling. Most organic pollutants have been analyzed at the Norwegian Institute of Marine Research's chemistry laboratories. Certain new organic pollutants are analyzed by the Norwegian Institute for Air Research (NILU). Results of all environmental geochemical investigations are collected in a common database together with inorganic pollutants and sediment characteristics from the Geological Survey of Norway (NGU). The data set is suitable for use on a scale of 500,000 - 10,000,000.
Geologi Habitater og biotoper Havområder Mareano Forurensning Kyst og fiskeri Fjorder og kystnære havområder langs norskekysten Barentshavet Norskehavet Svalbard Norge Norge Mareano Chemistry Seabed enviroment Persistent organic poison Hydro carbon pollution Sediment infoMapAccessService
Service layer showing concentrations of Nonylphenol-4 (µg/kg dry weight) in samples of surface sediments collected on annual MAREANO cruises. These have been ongoing since 2006.

Sediment samples for geochemical analyzes are taken primarily from areas with fine-grained sediments both in open marine depositional environments and coastal sea areas. Sample density varies depending on location. There is a greater sample density in fjords and coastal areas, while in open sea areas there is a lower sample density.
The data have been collected on MAREANO cruises in the years 2006-2021, for 2003-2004 they have been collected on monitoring cruises in the Barents Sea and some stations in three pilot areas in the Marine base map in the coastal zone in 2020-2021.
Organic pollutants in marine sediments - Concentrations of Nonylphenol-4 WMS