{
    "Identifier": "09573c70-e9e6-4579-aee0-c879699b2fba",
    "Last_Update": "2026-04-12T23:24:15",
    "Source": "EMODnet Chemistry",
    "Title": "Beach litter - Composition of litter according to material categories in percent normalized per beach per year - Other sources 2001\/2021 v2023",
    "Abstract": "This visualization product displays marine macro-litter (\u0026gt; 2.5cm) material categories percentage per beach per year from non-MSFD monitoring surveys, research \u0026amp; cleaning operations.\n\nEMODnet Chemistry included the collection of marine litter in its 3rd phase. Since the beginning of 2018, data of beach litter have been gathered and processed in the EMODnet Chemistry Marine Litter Database (MLDB).\nThe harmonization of all the data has been the most challenging task considering the heterogeneity of the data sources, sampling protocols and reference lists used on a European scale.\n\n\nPreliminary processing were necessary to harmonize all the data:\n\t\t- Exclusion of OSPAR 1000 protocol: in order to follow the approach of OSPAR that it is not including these data anymore in the monitoring;\n\t\t- Selection of surveys from non-MSFD monitoring, cleaning and research operations;\n\t\t- Exclusion of beaches without coordinates;\n\t\t- Exclusion of surveys without associated length;\n\t\t- Some litter types like organic litter, small fragments (paraffin and wax; items \u0026gt; 2.5cm) and pollutants have been removed. The list of selected items is attached to this metadata. This list was created using EU Marine Beach Litter Baselines and EU Threshold Value for Macro Litter on Coastlines from JRC (these two documents are attached to this metadata);\n\t\t- Exclusion of the \u0022feaces\u0022 category: it concerns more exactly the items of dog excrements in bags of the OSPAR (item code: 121) and ITA (item code: IT59) reference lists;\n\t\t- Normalization of survey lengths to 100m \u0026amp; 1 survey \/ year: in some case, the survey length was not 100m, so in order to be able to compare the abundance of litter from different beaches a normalization is applied using this formula:\n\t\tNumber of items (normalized by 100 m) = Number of litter per items x (100 \/ survey length)\n\t\tThen, this normalized number of items is summed to obtain the total normalized number of litter for each survey.\n\nTo calculate percentages for each material category, formula applied is:\nMaterial (%)  = (?number of items (normalized at 100 m) of each material category)*100 \/ (?number of items (normalized at 100 m)  of all categories)\n\nThe material categories differ between reference lists (OSPAR, TSG_ML, UNEP, UNEP_MARLIN). In order to apply a common procedure for all the surveys, the material categories have been harmonized.\n\nMore information is available in the attached documents.\n\n\nWarning: the absence of data on the map doesn\u0027t necessarily mean that they don\u0027t exist, but that no information has been entered in the Marine Litter Database for this area.",
    "Organisations": [
        "EMODnet Chemistry",
        "IFREMER \/ IDM \/ SISMER - Scientific Information Systems for the SEA",
        "Ifremer \/ VIGIES (Information Valuation Service for Integrated Management and Monitoring)",
        "National Institute of Oceanography and Applied Geophysics - OGS, Division of Oceanography",
        "Ifremer, VIGIES (Information Valuation Service for Integrated Management and Monitoring)",
        "IFREMER, SISMER, Scientific Information Systems for the SEA",
        "Aarhus University,Danish Centre for Environment and Energy",
        "Aarhus University, Department of Bioscience",
        "Aegean Greeners",
        "Archipelagos Institute of Marine Conservation",
        "Asociaci\u00f3n Vertidos Cero",
        "Black Sea NGO Network",
        "CENTRE FOR DOCUMENTATION, RESEARCH AND EXPERIMENTATION ON ACCIDENTAL WATER POLLUTION",
        "Department of Fisheries and Marine Research, Division of Marine Biology and Ecology",
        "Disciplinary Centre of Marine Research and Environmental",
        "ECAT-Environmental Center for Administration \u0026amp; Technology",
        "Estonian Green Movement",
        "European Environment Agency",
        "eXXpedition",
        "Flanders Marine Institute",
        "Hellenic Centre for Marine Research, Institute of Oceanography",
        "Hold Danmark Rent",
        "Institute for Water of the Republic of Slovenia",
        "Institute of Marine Biology (IMBK)",
        "Institute of Marine Sciences, Middle East Technical University",
        "Institute of Oceanology, Bulgarian Academy of Sciences",
        "International Council for the Exploration of the Sea",
        "Isotech Ltd Environmental Research and Consultancy",
        "Istanbul University, Institute of Marine Science and Management",
        "Iv.Javakhishvili Tbilisi State University, Centre of Relations with UNESCO Oceanological Research Centre and GeoDNA (UNESCO)",
        "KIMO International Secretariat",
        "Legambiente",
        "Marine Conservation Society",
        "Maritime Training Center for Pollution Prevention, Safety at Sea and Environmental Awareness",
        "Mediterranean Information Office for Environment, Culture and Sustainable Development",
        "Directorate for Coast and Sea Sustainability. Ministry for Ecological Transition",
        "National Institute for Marine Research and Development \u0022Grigore Antipa\u0022",
        "National Institute of Marine Geology and Geoecology",
        "Non-governmental environmental organization \u0022Mare Nostrum\u0022",
        "Norwegian Environment Agency",
        "OceanCare",
        "Plastic Change",
        "Portuguese Association for Marine Litter, APLM",
        "Portuguese Environment Agency",
        "State Oceanographic Institute",
        "Surfers Against Sewage",
        "Surfrider Foundation Europe",
        "The North Sea Foundation",
        "Treanbeg Marine",
        "Turkish Marine Research Foundation",
        "Ukrainian scientific center of Ecology of Sea"
    ],
    "Keywords": [
        "\/Human Activities\/Pollution",
        "Oceanographic geographical features",
        "Northeast Atlantic Ocean (40W)",
        "Arctic Ocean",
        "North Sea",
        "Black Sea",
        "Baltic Sea",
        "Mediterranean Sea",
        "EMODnet Chemistry",
        "\/Boulogne-sur-Mer\/BOL02",
        "\/Boulogne-sur-Mer\/BOL04",
        "\/Boulogne-sur-Mer\/BOL06",
        "\/Bournemouth\/BOR01",
        "\/La Rochelle\/LAR01",
        "\/Peniche\/PEN01",
        "\/Boulogne-sur-Mer",
        "\/Bournemouth",
        "\/Brest",
        "\/Cherbourg",
        "\/La Rochelle",
        "\/Plymouth",
        "\/Toulon"
    ],
    "Parameters": [
        "\n                  sediment\n",
        "\n                  Marine litter, including Plastics\n",
        "\n                  Litter abundance and type\n",
        "\n                  Beach litter abundance\n"
    ],
    "Bounding_Box_WestLongitude": -53.602001,
    "Bounding_Box_NorthLatitude": 81.685997,
    "Bounding_Box_EastLongitude": 41.771,
    "Bounding_Box_SouthLatitude": 28.393999,
    "Temporal_Extent_Begin": "2001-01-01",
    "Temporal_Extent_End": "2021-08-11",
    "OnlineResourceUrl": "\/search-details?step=~01209573c70-e9e6-4579-aee0-c879699b2fba"
}