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Vocabulary

EMODnet micro-litter types

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ID Preferred Label Definition Date
H0100010 Undefined micro-litter items A term to be used when the micro-litter morphologic type has not been defined. 2023-07-03
H0100004 filaments Slender thread-like micro-litter particles. 2022-06-28
H0100005 films Thin planar micro-litter particles of arbitrarily limited maximum thickness, in which the thickness is very small compared to the length and width (adapted from ISO definition for film https://www.iso.org/obp/ui/#iso:std:iso:5148:ed-1:v1:en:term:3.1). In the micro-litter nomenclature, particles of type "films" are more flexible than particles of type "fragments" with the latter tending to break easily (Isobe et al 2019). 2023-07-24
H0100006 foams Flexible micro-litter particles in which material cells are all or partly intercommunicating (adapted from ISO definition for foam (https://www.iso.org/obp/ui/#iso:std:iso:tr:20342:-7:ed-1:v1:en). 2023-07-04
H0100002 fragments Irregularly-shaped micro-litter particles with broken off edges that may be rounded or angular. 2023-07-10
H0100009 granules Micro-litter particles with smooth spherical shape. In comparison with pellets, they have a rounder shape and are smaller in size (adapted from [Matiddi et al, 2021](https://accedacris.ulpgc.es/bitstream/10553/114417/1/Report_ Monitoring-microlitter-ingestion-in-marine-fish.pdf)). 2022-07-20
H0100001 microplastic items DEPRECATED Term deprecated on 2023/07/03 as agreed https://github.com/nvs-vocabs/H01/issues/3. Description was:A generic term for any kind of micro-litter item made of any kind of plastic material. 2023-07-03
H0100008 non-plastic filaments (natural fibres, rubber) DEPRECATED Term deprecated on 2022/06/28 following review of the H01 categories; see https://github.com/nvs-vocabs/EMODnetChemVocabs/issues/19. Filaments of non-plastic material such as natural fibres or rubber that are present in micro-litter samples. 2022-06-28
H0100007 non-plastic man-made micro-particles (e.g. glass, metal, tar) DEPRECATED Term deprecated on 2022/06/28 following review of the H01 categories; see https://github.com/nvs-vocabs/EMODnetChemVocabs/issues/19. A generic term for any kind of micro-litter item that is not made of plastic. 2022-06-28
H0100003 pellets Micro-litter particles from industrial origin only. In comparison with granules, pellets are usually flat on one side, rough surface and irregular, round shapes. Normally bigger in size. 2022-06-28