a3524200-7a7f-4572-bb4c-e07d767ca174 Product record EMODnet Chemistry sextant@ifremer.fr http://www.emodnet.eu/chemistry 2025-07-29T15:04:33.382319Z ISO 19115:2003/19139 - EMODNET - SDN 1.0 WGS 84 (EPSG:4326) EPSG Micro litter - Density per net normalized in grams per km² - Research and monitoring protocols 2011/2023 v2025 mlf_density_g_km2_monitoring 2025-02-07 1.0 DOI:10.13120/a3524200-7a7f-4572-bb4c-e07d767ca174 This visualization product displays the density of floating micro-litter per net normalized in grams per km² per year from research and monitoring protocols. EMODnet Chemistry included the collection of marine litter in its 3rd phase. Before 2021, there was no coordinated effort at the regional or European scale for micro-litter. Given this situation, EMODnet Chemistry proposed to adopt the data gathering and data management approach as generally applied for marine data, i.e., populating metadata and data in the CDI Data Discovery and Access service using dedicated SeaDataNet data transport formats. EMODnet Chemistry is currently the official EU collector of micro-litter data from Marine Strategy Framework Directive (MSFD) National Monitoring activities (descriptor 10). A series of specific standard vocabularies or standard terms related to micro-litter have been added to SeaDataNet NVS (NERC Vocabulary Server) Common Vocabularies to describe the micro-litter. European micro-litter data are collected by the National Oceanographic Data Centres (NODCs). Micro-litter map products are generated from NODCs data after a test of the aggregated collection including data and data format checks and data harmonization. A filter is applied to represent only micro-litter sampled according to research and monitoring protocols as MSFD monitoring. Densities were calculated for each net using the following calculation: Density (weight of particles per km²) = Micro-litter weight / (Sampling effort (km) * Net opening (cm) * 0.00001) When information about the sampling effort (km) was lacking and point coordinates were known (start and end of the sampling), the sampling effort was calculated using the PostGIS ST_DistanceSpheroid function with a WGS84 measurement spheroid. When the weight of microlitters or the net opening was not filled, it was not possible to calculate the density. Percentiles 50, 75, 95 & 99 have been calculated taking into account data for all years. Warning: the absence of data on the map does not necessarily mean that they do not exist, but that no information has been entered in the National Oceanographic Data Centre (NODC) for this area. EMODnet Chemistry IFREMER / IDM / SISMER - Scientific Information Systems for the SEA +33 (0)2 98.22.49.16 +33 (0)2 98.22.46.44 IFREMER Centre de Bretagne ZI Pointe du diable CS 10070 PLOUZANE 29280 France sismer@ifremer.fr http://www.ifremer.fr/sismer/ web site Ifremer / VIGIES (Information Valuation Service for Integrated Management and Monitoring) +33 (02 40.37.40.00 +33 (0)2 40.37.40.01 Rue de l'Ile d'Yeu BP 1105 NANTES CEDEX 03 44311 France morgan.le.moigne@ifremer.fr https://wwz.ifremer.fr/Recherche-Technologie/Departements-scientifiques/Departement-Oceanographie-et-Dynamique-des-Ecosystemes/VIGIES web site National Institute of Oceanography and Applied Geophysics - OGS, Division of Oceanography Borgo Grotta Gigante 42/c Sgonico (Trieste) 34010 Italy nodc@ogs.trieste.it http://www.ogs.trieste.it/ web site Ifremer, VIGIES (Information Valuation Service for Integrated Management and Monitoring) +33 (02 40.37.40.00 +33 (0)2 40.37.40.01 Rue de l'Ile d'Yeu BP 1105 NANTES CEDEX 03 44311 France morgan.le.moigne@ifremer.fr https://wwz.ifremer.fr/Recherche/Departements-scientifiques/Departement-Oceanographie-et-Dynamique-des-Ecosystemes/VIGIES web site IFREMER, SISMER, Scientific Information Systems for the SEA +33 (0)2 98.22.49.16 +33 (0)2 98.22.46.44 IFREMER Centre de Bretagne ZI Pointe du diable CS 10070 PLOUZANE 29280 France sismer@ifremer.fr http://data.ifremer.fr/SISMER web site ARPA Abruzzo 0039 085450021 Viale G. Marconi, 49 Pescara 65126 Italy info@artaabruzzo.it https://www.artaabruzzo.it web site ARPA Basilicata 0039 0971656111 Via Della Fisica 18 C/D Potenza 85100 Italy protocollo@pec.arpab.it http://www.arpab.it web site ARPA Calabria Via Lungomare, Loc. Mosca (zona Giovino-Porto) Catanzaro Lido 88063 Italy urp@arpacal.it http://www.arpacal.it web site ARPA Campania 0039 0812326214 Via Vicinale Santa Maria del Pianto Centro Polifunzionale, Torre 1 Napoli 80143 Italy segreteria@arpacampania.it https://www.arpacampania.it web site ARPA Emilia-Romagna, Struttura Oceanografica Daphne Centro Ricerche Marine Viale Vespucci 2 Cesenatico 47042 Italy http://www.arpa.emr.it/Daphne/index.asp web site ARPA Friuli-Venezia Giulia, Alto Adriatico Observatory +39 0432 922 611 +39 0432 922 626 Via Cairoli, 14 - 33057 Palmanova (UD) Palmanova (UD) 33057 Italy web site ARPA Lazio Via Rosa Raimondi Garibaldi 7 Reiti Italy web site ARPA Liguria +3901064371 Via Bombrini 8 Genova 16149 Italy info@arpal.gov.it https://www.arpal.gov.it/ web site ARPA Marche 0039 0712132720 Via Ruggeri, 5 Ancona 60131 Italy dg.arpam@ambiente.marche.it https://www.arpa.marche.it web site ARPA Molise 0039 0874492600 VIa U. Petrella, 1 Campobasso 86100 Italy dirgen@arpamolise.it https://www.arpamolise.it web site ARPA Puglia 0039 0805460111 Corso Trieste, 27 Bari  70126  Italy dir.generale.arpapuglia@pec.rupar.puglia.it https://www.arpa.puglia.it web site ARPA Sardegna 0039 070271681 Via Contivecchi, 7 Cagliari 09122 Italy info@arpa.sardegna.it https://www.sardegnaambiente.it web site ARPA Sicilia 0039 091598260 Viale Cristoforo Colombo Palermo 90149 Italy arpa@arpa.sicilia.it https://www.arpa.sicilia.it web site ARPA Toscana, Area Tutela Ambiente Marino 055 32061 055 3206324 Via Porpora, 22 Firenze Firenze 50144 Italy web site ARPA Veneto, Osservatorio Regionale Acque Piazzale Stazione, 1 Padova 35131 Italy ats@arpa.veneto.it http://www.arpa.veneto.it/ web site Association Oceaneye +41786371673 rue Royaume 10 Genève 1201 Switzerland info@oceaneye.ch https://www.oceaneye.ch/ web site Department of Marine Systems at Tallinn University of Technology +372 6204300 MSI, Akadeemia tee 15a Tallinn 12618 Estonia msi@msi.ttu.ee https://www.taltech.ee/meresusteemide-instituut web site Finnish Environment Institute +358295 251 000 +358954902190 Latokartanonkaari 11 Helsinki 00790 Finland https://www.syke.fi/en-US web site Helmholtz Centre for Ocean Research Kiel (Westshore campus) +49 431 600-0 +49 431 600-2805 Düsternbrooker Weg 20 Kiel 24105 Germany info@geomar.de https://www.geomar.de/en/ web site Hellenic Centre for Marine Research, Institute of Oceanography +30-22910-76452. -76460 +30-22910-76347 46.7 km Athinon-Souniou Av. P.O.Box 712 Anavyssos 19013 Greece iosecretariat@hcmr.gr https://www.hcmr.gr/ web site IEO, Spanish Oceanographic Institute +34 91 342 11 00 +34 91 597 47 70 Corazon de Maria, 8 MADRID 28002 Spain cedo@ieo.es http://www.ieo.es web site IEO-CSIC, Vigo Oceanographic Centre +34 986 492 111 +34 986 498 626 Subida a Radio Faro 50-52 Vigo 36390 Spain ieo.vigo@ieo.csic.es http://www.ieo.es/vigo web site Ifremer, Environment Resources Laboratory Provence Azur Corsica (La Seyne-sur-Mer) +33 (0)4 94 30 48 00 +33 (0)4 94 30 13 72 Centre Ifremer Méditerranée Zone portuaire de Brégaillon CS 20330 LA SEYNE SUR MER CEDEX 83507 France https://wwz.ifremer.fr/mediterranee/ web site Ifremer, Fisheries Science and Technology (Plouzane) +33 (0)2 98 22 43 66 +33 (0)2 98 22 45 47 Centre Ifremer Bretagne ZI Pointe du diable CS 10070 PLOUZANE 29280 France https://wwz.ifremer.fr/sciences_technologies_halieutiques web site Institute for Water of the Republic of Slovenia +386(0)14775300 Dunajska 156 Ljubljana 1000 Slovenia info@izvrs.si http://www.izvrs.si/?lang=en web site Institute of Marine Sciences, Middle East Technical University +90 (324) 5212406 +90 (324) 5212327 P.O.Box 28 Erdemli 33731 Turkey http://ims.metu.edu.tr/ web site Istanbul University, Institute of Marine Science and Management Müsküle Sok. No. 1 Vefa Istanbul 34470 Turkey https://www.istanbul.edu.tr/enstituler/denizbilimleri/denizbilimleri.htm web site Latvian Institute of Aquatic Ecology +371 67601995, +371 67614840, +371 67610851 +371 67601995 Voleru str.4 Riga LV-1007 Latvia juris.aigars@lhei.lv http://www.lhei.lv/en web site Planete Urgence +33(0)1.43.40.42.00 47 avenue Pasteur Mundo-M. Montreuil 93100 France https://planete-urgence.org/ web site https://sextant.ifremer.fr/geonetwork/srv/api/records/a3524200-7a7f-4572-bb4c-e07d767ca174/attachments/mlf_density_g_km2_monitoring.png /Human Activities/Pollution Thèmes Sextant 2023-03-16 geonetwork.thesaurus.local.theme.sextant-theme Oceanographic geographical features GEMET - INSPIRE themes, version 1.0 2018-07-27T14:39:48 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Micro-litter in water bodies Parameter Discovery Vocabulary (P02) 2021-04-07 geonetwork.thesaurus.external.parameter.NVS.P02 Aegean Sea Asian mainland Balearic Sea Central Baltic Sea Mediterranean Sea, Eastern Basin Tyrrhenian Sea Sound Sea Celtic Sea Ionian Sea Dover Strait Bay of Biscay Gulf of Finland Lyme Bay Mediterranean Sea, Western Basin Gulf of Riga English Channel Adriatic Sea Northeast Atlantic Ocean (40W) SeaVoX salt and fresh water body gazetteer 2021-04-07 geonetwork.thesaurus.external.reference-geographical-area.NVS.C19 EMODnet Chemistry water body Matrix Categories 2021-04-07 geonetwork.thesaurus.external.parameter.NVS.L04 Marine litter, including Plastics EMODnet Chemistry chemical groups 2021-04-07 geonetwork.thesaurus.external.parameter.NVS.P36 Data Mission Atlantic - Resources 2024-07-26 geonetwork.thesaurus.local.theme.mission-atlantic-resources Celtic Seas Mission Atlantic - Case Studies 2024-07-26 geonetwork.thesaurus.local.theme.mission-atlantic-case-studies WP4 Benthic Mapping Mission Atlantic - Work Package 2024-07-26 geonetwork.thesaurus.local.theme.mission-atlantic-work-package /Environment/Pollution Mission Atlantic - BODC Parameters 2024-07-26 geonetwork.thesaurus.local.theme.mission-atlantic-bodc-parameters Spatial data products Mission Atlantic - Data type (DMP) 2024-07-26 geonetwork.thesaurus.local.theme.mission-atlantic-data-type /Boulogne-sur-Mer/BOL02 /Boulogne-sur-Mer/BOL04 /Boulogne-sur-Mer/BOL06 /Bournemouth/BOR01 /Concepción/CON06 /Kuala Lumpur/KUL08 /La Rochelle/LAR01 /Peniche/PEN01 Ocean Hackathon - City and challenge 2024-07-26 geonetwork.thesaurus.local.place.oh_ville CC BY 4.0: https://creativecommons.org/licenses/by/4.0/ Usage is subject to mandatory citation: "This resource was generated in the framework of EMODnet Chemistry, under the support of DG MARE Call for Tender EASME/EMFF/2018/1.3.1.8 - lot4." eng bounding box -11.2678 36.1503 34.7062 59.8442 2011-06-14 2020-12-02 -0.5 0.0 https://doi.org/10.6092/d3e239ec-f790-4ee4-9bb4-c32ef39b426d WWW:LINK Guidelines and formats for gathering micro-litter data Guidelines and formats for gathering micro-litter data https://sextant.ifremer.fr/documentation/emodnet_chemistry/document/Field_description/MLF_field_description_density_groupby.xlsx WWW:LINK Description of the layer's fields Description of the layer's fields https://sextant.ifremer.fr/sextant_data/EMODNET/CHEMISTRY/MARINE_LITTER/2025/mlf_density_g_km2_monitoring.zip WWW:DOWNLOAD Direct Download Direct Download https://emodnet.ec.europa.eu/geoviewer/ WWW:LINK EMODnet Map Viewer EMODnet Map Viewer https://sextant.ifremer.fr/services/wms/emodnet_chemistry2 OGC:WMS mlf_density_g_km2_monitoring Micro litter - Research and monitoring protocols - Density per net normalized in grams per km² https://doi.org/10.13120/skvs-yz64 WWW:LINK Visualization products for floating micro-litter data Methodologies applied to create the maps https://doi.org/10.13120/a3524200-7a7f-4572-bb4c-e07d767ca174 DOI Digital Object Identifier (DOI) Data Access and Citation 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 See the referenced specification The data used as input for this product have been extracted from the EMODnet Chemistry Download Service: https://emodnet-chemistry.maris.nl/search