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Sedimentprøver for kjemiske analyser er samlet inn på tokt med Havforskningsinstituttets egne fartøy i regi av flere forskjellige prosjekter, inkludert MAREANO-programmet. Multicorer, boksprøvetaker og Van Veen grabb er brukt til prøvetaking. De fleste organiske miljøgifter er analysert på Havforskningsinstituttets kjemilaboratorier. Enkelte nye organiske miljøgifter analyseres av Norsk Institutt for Luftforskning (NILU). Resultater av alle miljøgeokjemiske undersøkelser er samlet i en felles database sammen med uorganiske miljøgifter og sedimentkarakteristikk fra Norges geologiske undersøkelse (NGU). Datasettet egner seg til bruk i målestokk 500 000 - 10 000 000.
Geologi Habitater og biotoper Havområder Norway Digital Open data Mareano MarineGrunnkart fellesDatakatalog Forurensning Kyst og fiskeri Natur Fjorder og kystnære havområder langs norskekysten Barentshavet Norskehavet Svalbard Norge Norge Mareano Chemistry Seabed Sediment Persistent organic poison Hydro carbons pollution enviroment Marine Grunnkart i Kystsonen infoMapAccessService
Concentrations of anthracene  (µg/kg dry weight) in samples of surface sediments collected on annual MAREANO cruises since 2006. Data from monitoring cruises in the Barents Sea in 2003-2004, as well as for some stations in the pilot project "Marine Grunnkart i Kystsonen" (Marine Ground Map in the Coastal Zone) in 2020-21, are also included in the data set.

Anthracene is a polycyclic aromatic hydrocarbon (PAH). PAHs consist of two or more aromatic rings and have low water solubility and are therefore to a small extent dissolved in water bodies, but linked to various types of particles such as organic colloids or mineral particles. All PAHs are lipophilic (dissolve easily in fat) and can bioaccumulate (build up) in many marine organisms. Exposure to PAHs can lead to various damages, since several PAHs are toxic and carcinogenic. In marine sediments, PAH can be preserved for a long time, and trends in the supply of PAH can be studied by analyzing sediment cores.

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 the sample density is lower.
Organic environmental poisons in marine sediments - Levels of Antracen WMS