CEFAS2b0df2fd-05d5-438a-8552-aba9e28b0111 English dataset Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk pointOfContact 2025-06-05T12:49:02 EPSG Geodetic Parameter Registry 2022-01-07 revision WGS 84 Contaminants data from sediment cores collected in the North Sea between 2023 and 2024 and the Celtic Sea during 2023 2025-06-05 publication 2025-06-05 revision 2025-04-15 creation CEFAS22173 https://data.cefas.co.uk These sample data are from sediment cores collected using a NIOZ (Royal Netherlands Institute for Sea Research design) Box Corer during 3 surveys conducted by the Research Vessel (RV) Cefas Endeavour. Sample were analysed for and data presented for Metals, Rare Earth Elements (REE), Organotins (OT), Polycyclic Aromatic Hydrocarbons (PAH), Polybrominated Diphenyl Ethers (PBDE – Flame Retardants), Polychlorinated Biphenyls Ethers (PCB – Industrial Chemicals), Organochlorine Pesticides (OCP), and Per & Poly Fluoroalkyl Substances (PFAS). Additional surface scrapes were taken from sediment grabs using a Day Grab during the latter two surveys (CEND172023 & CEND092024). Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk originator Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk custodian Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) Cefas Lowestoft Laboratory Pakefield Road Lowestoft Suffolk NR33 0HT UK data.manager@cefas.co.uk distributor Department for Environment, Food and Rural Affairs (DEFRA) defra.helpline@defra.gov.uk owner notPlanned Ecosystem Sediment GEMET, version 1.0 2008-06-01 publication Anthropogenic contamination Hydrocarbons PCBs and organic micropollutants Organometallic species concentration parameters in sediments Metal and metalloid concentrations SeaDataNet P03 parameter discovery vocabulary 2011-03-25 revision Habitats and biotopes GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Sediment SeaVoX Vertical Co-ordinate Coverages 2010-05-18 revision Marine Environmental Data and Information Network MEDIN metadata record availability 2012-01-11 publication data.gov.uk MEDIN metadata record availability 2012-01-11 publication otherRestrictions noLimitations otherRestrictions These data are currently pending release and may be made available on request to Cefas at present. Publicly available data licensed under the Open Government Licence v3.0 ( `https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/`_ ) – Please note the applicable attribution statement is as follows: ‘includes Crown copyright, Cefas 2025' .. _`https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/`: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ English environment 1.73881 1.74086 52.4581 52.4595 2023-05-20 2024-06-09 Unknown https://data.cefas.co.uk/view/22173 Cefas Data Portal information The Cefas Data Portal contains metadata records and data sets available to download and connect to in support of our commitment to open science. dataset INSPIRE Data Specification on Habitats and Biotopes – Technical Guidelines 2013-12-10 publication false See the referenced specification Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication true See the referenced specification These data are from the following areas and surveys. - CEND072023 – North Sea (Farnes Deep, Fulmar, & Dogger Bank) – May 20- th- to June 10- th- , 2023. - CEND172023 – Celtic Sea – November 9- th- to November 28- th- , 2023. - CEND092024 – North Sea (Farnes Deep, Fulmar, & Dogger Bank) - May 24- th- to June 9- th- , 2024. At each station within a survey a NIOZ Box Corer was deployed collecting core up to a maximum sediment depth of 30cm, a metal cylinder was used to take 10cm diameter sub core which were sliced at 5cm intervals. Samples were stored frozen at approximately -20 Deg C in pentane rinsed glassed jars. The surface scrapes were taken from grab samples collected using a Day Grab. A representative subsample was transferred from the grab using a pentane rinsed metal spoon into pentane rinsed glassed jars and were stored frozen at approximately -20 Deg C. Metals and REE samples underwent freeze drying and were sieved to less than 63um fraction, followed by microwave total sediment digestion using a mixture of hydrofluoric, nitric, and hydrochloric acid before analyses. Analysis was performed using Inductive Coupled Plasma - Mass Spectrometry (ICP-MS) and ICP - Optical/Atom Emission Spectroscopy (ICP-OES/AES). Organotin sample underwent methanol followed by hexane extraction before analysis by Gas Chromatography with Flame Photometric Detection (GC-FPD). PAH samples underwent alkaline saponification before analysis by Gas Chromatography-Mass Spectrometry (GC-MS). PBDE, PCB, and OCP samples underwent acetone and hexane extraction before analysis by Gas Chromatography Tandem Mass Spectrometry (GC-MS/MS). PFAS samples underwent acetonitrile extraction before analysis by High Performance Liquid Chromatography – Mass Spectrometry (HPLC-MS). A data point can potentially have multiple Quality Flags (QFlags) which will be semicolon separated. Definition of each QFlag can be found in the QFlag text file attached to this record. This dataset was produced by work supported jointly by the Joint Nature Conservation Committee (JNCC) lead NC40 Offshore Marine Monitoring project funded by Department of Environment, Food, & Rural Affairs (Defra) under its flagship marine Natural Capital and Ecosystem Assessment (mNCEA) programme and by the Defra funded Carbon Management Project (project number MRD333). Find out more about mNCEA at `https://www.gov.uk/government/publications/natural-capital-and-ecosystem-assessment-programme`_ . .. _`https://www.gov.uk/government/publications/natural-capital-and-ecosystem-assessment-programme`: https://www.gov.uk/government/publications/natural-capital-and-ecosystem-assessment-programme MEDIN 3.1.1