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IFREMER, SISMER, Scientific Information Systems for the SEA (SISMER) EMODnet Chemistry
Ifremer, VIGIES (Information Valuation Service for Integrated Management and Monitoring) EMODnet Chemistry
National Institute of Oceanography and Applied Geophysics - OGS, Division of Oceanography EMODnet Chemistry
Beach Litter - Composition of litter according to material categories in percent normalized per beach per year - Official monitoring 2001/2020 v2021
EMODnet Chemistry
/Human Activities/Pollution
Oceanographic geographical features
Litter abundance and type
Beach litter abundance
Baltic Sea
Arctic Ocean
North Sea
Black Sea
Mediterranean Sea
Northeast Atlantic Ocean (40W)
EMODnet Chemistry
Marine litter
Beach litter
ARPA Calabria SeaDataNet
ARPA Emilia-Romagna, Struttura Oceanografica Daphne SeaDataNet
ARPA Liguria SeaDataNet
Aarhus University, Department of Bioscience SeaDataNet
Aarhus University,Danish Centre for Environment and Energy SeaDataNet
Black Sea Basin Directorate SeaDataNet
Centre for Documentation, Research and Experimentation on Accidental Water Pollution SeaDataNet
Chief Inspectorate for Environmental Protection SeaDataNet
Department of Fisheries and Marine Research, Division of Marine Biology and Ecology SeaDataNet
EUCC, The Coastal Union Germany SeaDataNet
Environment and Resources Authority SeaDataNet
Foundation for Environmental Education, Latvia SeaDataNet
French Agency For Biodiversity SeaDataNet
Hellenic Centre for Marine Research, Institute of Oceanography SeaDataNet
Institute for Water of the Republic of Slovenia SeaDataNet
Institute of Oceanography and Fisheries SeaDataNet
Jordsand Association SeaDataNet
KIMO Denmark SeaDataNet
KIMO International Secretariat SeaDataNet
Keep the Archipelago Tidy Association SeaDataNet
Keep the Estonian Sea Tidy Association SeaDataNet
MTE-DGSCM, Directorate for Coast and Sea Sustainability. Ministry for Ecological Transition SeaDataNet
Marine Research Institute of Klaipeda University SeaDataNet
Mediterranean Information Office for Environment, Culture and Sustainable Development SeaDataNet
Mer-Terre SeaDataNet
National Agricultural Research Foundation, Fisheries Research Institute SeaDataNet
National Institute for Marine Research and Development "Grigore Antipa" SeaDataNet
National Institute of Chemistry SeaDataNet
National Park Authority Vorpommern SeaDataNet
Nature and Biodiversity Conservation Union Germany SeaDataNet
Nature and Biodiversity Conservation Union, Marine Conservation Office SeaDataNet
Non-governmental environmental organization "Mare Nostrum" SeaDataNet
Office of Schleswig-Holstein Wadden Sea National Park SeaDataNet
Portuguese Environment Agency SeaDataNet
Regional School "Windland" Altenkirchen SeaDataNet
Royal Belgian Institute of Natural Sciences SeaDataNet
Southeast Rügen Biosphere Reserve Office SeaDataNet
State Agency for Environment, Nature and Geology, Mecklenburg-Vorpommern SeaDataNet
State Office for Agriculture, Environment and Rural Areas of Schleswig Holstein SeaDataNet
The Danish Environmental Protection Agency SeaDataNet
The Keep Sweden Tidy Foundation SeaDataNet
The North Sea Foundation SeaDataNet
Treanbeg Marine SeaDataNet
University of Patras, Department of Geology, Laboratory of Marine Geology and Physical Oceanography SeaDataNet
0.263 MB
application/zip including 4 files: .dbf, .prj, .shp and .shx
Open Access
Creative Commons Attribution 4.0 International:
Public domain and freely available for all users, following the specified citation format.
This visualization product displays marine macro-litter (> 2.5cm) material categories percentage per beach per year from Marine Strategy Framework Directive (MSFD) monitoring surveys.<br /><br />EMODnet 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).<br />The 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.<br /><br /><br />Preliminary processing were necessary to harmonize all the data:<br /> - Exclusion of OSPAR 1000 protocol: in order to follow the approach of OSPAR that it is not including these data anymore in the monitoring;<br /> - Selection of MSFD surveys only (exclusion of other monitoring, cleaning and research operations);<br /> - Exclusion of beaches without coordinates;<br /> - Some litter types like organic litter, small fragments (paraffin and wax; items > 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);<br /> - Exclusion of the "feaces" 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;<br /> - Normalization of survey lengths to 100m & 1 survey / year: in some case, the survey length was not exactly 100m, so in order to be able to compare the abundance of litter from different beaches a normalization is applied using this formula:<br /> Number of items (normalized by 100 m) = Number of litter per items x (100 / survey length)<br /> Then, this normalized number of items is summed to obtain the total normalized number of litter for each survey.<br /> Sometimes the survey length was null or equal to 0. Assuming that the MSFD protocol has been applied, the length has been set at 100m in these cases.<br /> <br /> <br />To calculate percentages for each material category, formula applied is:<br />Material (%) = (∑number of items (normalized at 100 m) of each material category)*100 / (∑number of items (normalized at 100 m) of all categories)<br /><br />The material categories differ between reference lists (OSPAR, ITA, TSG_ML, UNEP, UNEP_MARLIN). In order to apply a common procedure for all the surveys, the material categories have been harmonized.<br /><br />More information is available in the attached documents.<br /><br /><br />Warning: the absence of data on the map doesn't necessarily mean that they don't exist, but that no information has been entered in the Marine Litter Database for this area.
European beaches -53.602 41.771 28.394 81.686
European Commission Aggregated data products are generated by EMODnet Chemistry under the support of DG MARE Call for Tenders EASME/EMFF/2016/006-lot4, EASME/2019/OP/0003-lot4.