CEFASb775d58b-c4b8-4279-a2f3-a23c19de59f1 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 2024-07-12T12:50:21 EPSG Geodetic Parameter Registry 2022-01-07 revision WGS 84 CLiP Vanuatu Microplastics in sediment 2018 2019-05-03 publication 2024-07-12 revision 2019-05-03 creation CEFAS19807 https://data.cefas.co.uk This dataset contains 2 csv files. One file reports data on microplastic abundance in sediment expressed in number of particles for 5g sediment. Sediment was collected from 20 grabs deployed in Port Vila Bay and Mele Bay in Efate Island (Vanuatu) in 2018. The file also reports information on blank used, grab GPS coordinates and deployment time and the particulate size analysis (PSA) of the sediment. The other file contains the profile of a ATR-FT-IR spectrum analysis of a plastic particle (>5mm). A READ-ME text file contains the description of columns content for the two csv files . A .zip file contains the picture of the plastic particle analysed with ATR-FT-IR. 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 Litter abundance and type SeaDataNet P02 parameter discovery vocabulary 2011-03-25 revision Sediment GEMET, version 1.0 2008-06-01 publication Habitats and biotopes GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Unknown 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 Public data - no limitations to reuse English environment 160.00 170.00 -20.00 -10.00 2018-11-19 2018-12-05 Binary Delimited Geographic Information System Unknown https://data.cefas.co.uk/view/19807 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 The Commonwealth Litter Project (CLiP) supported Solomon Islands to take action on plastics entering the oceans. The assessment of microplastics in seawater was part of the action plan to define scientific baselines for future monitoring purposes and comparison. Samples were acquired deploying a small Van Veen grab (Duncan and Associates, UK, sampled area 0.025 square metre) off small vessels by hand. Grab were done only if the bottom was well visible and clear of live coral. Sediment grabs were subsampled with a steel spoon into sample jars for microplastics and PSA. Sample were then frozen (-18 degrees Celsius). A control jar was left exposed to the atmosphere during the subsampling to investigate background contamination. In the lab, visible plastic particles greater than 5mm were removed and analysed using ATR-FT-IR to identify particle composition comparing their spectrum to a polymers library. The rest of the sample was dried and homogenised, chemically digested with 30 percent KOH:NaClO solution for 3 days at 50 degrees Celsius. Samples were then filtered, stained with Red Nile dye and a digital image was acquired through a microscope. Number of particles was counted and corrected for blank samples. ATR-FT-IR is the attenuated total reflection Fourier Transform infrared spectroscopy. A Thermo Fisher Scientific Nicolet iS5 ATR-FTIR with an OMNIC software (version 9.9.473) was used and polymers were identified based on the percentage match of IR spectra to a polymer library. Only spectra matched greater than 70 percent were accepted Spectra were collected in the range 4000 – 650 1/cm at a resolution of 4 1/cm. Particulate size analysis was performed measuring the weight of the sample and of its gravel, sand and mud components. The percentage of the three components over the total weight was also measured. MEDIN 3.1.1