CEFAS73b33c6e-3f04-4515-90bc-00bb7f9d390c 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 2025-04-11T12:43:37 EPSG Geodetic Parameter Registry 2022-01-07 revision WGS 84 Microplastics data in UK (England and Wales) seafloor sediments from 2013 to 2021 2024-01-12 publication 2025-04-11 revision 2023-10-05 creation CEFAS21717 https://data.cefas.co.uk This dataset presents the abundance of microplastics in seafloor sediments for the different Clean Seas Environment Monitoring programme (CSEMP) stations from 2013 to 2021. Additional parameters included particle size analysis (PSA) with % gravel, % sand and % silt as well as data from organic carbon and nitrogen (OCN) analysis. 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 Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) data.manager@cefas.co.uk owner Department for Environment, Food and Rural Affairs (DEFRA) defra.helpline@defra.gov.uk owner notPlanned Micro-litter in sediments Nitrogen concentrations in sediment Sediment grain size parameters SeaDataNet P02 parameter discovery vocabulary 2011-03-25 revision Monitoring Sediment GEMET, version 1.0 2008-06-01 publication 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 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 2024' .. _`https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/)`: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ English environment -8.00 3.00 49.50 55.75 2013-01-01 2021-01-01 Binary Delimited Geographic Information System Unknown https://data.cefas.co.uk/view/21717 Cefas Data Portal download The Cefas Data Portal contains metadata records and data sets available to download and connect to in support of our commitment to open science. Data is available in the following formats: Binary download, CSV, ESRI Shapefile. The data can also be accessed via the WFS and WMS protocols. 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 Sediment samples were collected as part of CSEMP. Sediment samples were collected using a stainless steel 0.1 m2 Day Grab, rinsed before deployment with Pentane to reduce sample contamination between sites. Surficial sediment (top 2-3 cm) was collected using a solvent rinsed metal spoon and placed in a pre-rinsed glass jar with foil and cap. Samples were stored at -18oC until ready for analysis. Plastic items stability was assumed following the freezing process from direct observation. Plastic items were separated from sediments using a solution of zinc chloride (density 1.5 g.mL-1) and samples were digested for 3 days at 40oC using a mix of potassium hydroxide and sodium hypochlorite (30% KOH:NaClO v:v). Extracted particles (< 10%) were analysed using micro-Fourier Transform infrared spectroscopy (FTIR). MEDIN 3.1.1