Litter observations data during the years 2023 and 2024 at Belgian beaches (total count, total weight, categorisation). Data of the SeaWatch-B project, the beach observation network where citizens monitor the state of the Belgian North Sea from the beach. This citizen science project is supported by the Flanders Marine Institute (VLIZ) and LifeWatch Belgium.
","EngDescr":"Data were repeatedly collected at the same stations (defined beaches). Approximately four times a year.
Parameter 9 of SW-B: Litter on the high-water mark - Method: Collect over a length of 100m in the strand line all artificial waste of at least 2.5cm in size: plastic, rubber, textiles, paper, metal, glass, etc. Count the number of items and measure total weight with the crane scale (grams). Record both figures. Take one or more pictures of all the waste, with the ruler next to it.
Parameter 15 of SW-B: Litter on the high-water mark: J-List - Method: Collect over a length of 100m in the strand line all artificial waste of at least 2.5cm in size: plastic, rubber, textiles, paper, metal, glass, etc. (idem parameter 9) – also man-made and/or processed stones and wood. Score all items in categories according to the J-List* and count them. (* New guidelines for monitoring marine litter - Advice by Joint Research Centre of European Commission (since 12 December 2023))
Acknowledgment: Data were collected by many volunteers. We would like to thank all of them for their valuable contributions.
","OrigAbstract":"Waarnemingen van afval tijdens de jaren 2023 en 2024 op Belgische stranden (totaal aantal, totaal gewicht, categorisatie). Data van het SeaWatch-B project, het strandobservatienetwerk waarbij burgers de toestand van de Belgische Noordzee opmeten vanaf het strand. Deze burgerwetenschap wordt ondersteund door het Vlaams Instituut voor de Zee (VLIZ) en LifeWatch Belgium.
","OrigDescr":"Gegevens werden herhaaldelijk verzameld op dezelfde stations (gedefinieerde stranden). Ongeveer vier keer per jaar.
Parameter 9 van SW-B: Afval op de vloedlijn - Methode: Verzamel op de vloedlijn over een lengte van 100m alle kunstmatig afval van minimaal 2,5cm groot: plastic, rubber, textiel, papier, metaal, glas, etc. Tel het aantal items en weeg het totaalgewicht met de hangbalans (gram). Noteer beide cijfers. Neem een of meerdere foto’s van het afval, met de meetlat ernaast.
Parameter 15 van SW-B: Afval op de vloedlijn: J-List - Methode: Verzamel op de vloedlijn over een lengte van 100m alle kunstmatige afval van minstens 2,5cm groot: plastic, rubber, textiel, papier, metaal, glas, etc. (idem parameter 9) - ook kunstmatige en/of bewerkte stenen en hout. Scoor alle items in categorieën volgens de J-lijst* en tel ze. (* Nieuwe richtlijnen voor het monitoren van zwerfvuil op zee - Advies door Joint Research Centre van de Europese Commissie (sinds 12 december 2023))
Blijk van erkenning: Gegevens werden verzameld door talloze vrijwilligers. We zouden hen graag allemaal bedanken voor hun waardevolle bijdrage.
","Comments":null,"ReleaseDate":"Aug 10 2025 10:00PM","ReleaseDate0":"2025-08-10","OrigDescrLang":"Dutch","EmbargoDate":"2026-05-31","OrigDescrLangNL":"Nederlands","OrigLangCode":"nl","OrigLangCodeExtended":"dut","OrigLangID":41,"DescrCompFlag":null,"DescrTransFlag":null,"Citation":"Fockedey, N.; Dhaeze, M.; Quartier, M.; Vanhaecke, P.; Goossens, H.; Durinckx, F.; Van Belle, A.; Samyn, J-P.; Martens, P.; De Hondt, E.; Coppens, S.; Parrein, L.; Van Vlasselaer, J.; Hostyn, L.; Willaert, M.; Van Landschoot, W.; Verbeke, D.; Seys, J.; Flanders Marine Institute (VLIZ): Belgium; (2025): SeaWatch-B Litter Dataset 2023-2024. Marine Data Archive.","AccessConstraints":null,"UDate":"2026-04-02","CDate":"2025-08-11","CurrencyDate":null,"RevisionDate":null,"DateLastModified":{"date":"2026-04-02 11:55:07.310480","timezone_type":1,"timezone":"+02:00"},"CheckedFlag":0,"PublicFlag":1,"VlizCoreFlag":1,"MarineFlag":null,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":null,"StatusID":1,"DasType":"Data","DasTypeID":1,"DasOrigin":"Citizen science","Progress":"Completed","AccessConstraint":"This work is licensed under http://vocab.nerc.ac.uk/collection/L08/current/MO meaning it is under moratorium until 2026-05-31","AccConstrEN":"This work licensed under http://vocab.nerc.ac.uk/collection/L08/current/MO meaning it is under moratorium until 2026-05-31","AccConstrDisplay":null,"License":"http://vocab.nerc.ac.uk/collection/L08/current/MO/","AccConstrDescription":null,"Lineage":null,"AccConID":21,"UnderEmbargo":true},"dois":[{"DOIID":1235,"PublicationYear":2025,"DOI":"10.14284/757","Citation":"Fockedey, N.; Dhaeze, M.; Quartier, M.; Vanhaecke, P.; Goossens, H.; Durinckx, F.; Van Belle, A.; Samyn, J-P.; Martens, P.; De Hondt, E.; Coppens, S.; Parrein, L.; Van Vlasselaer, J.; Hostyn, L.; Willaert, M.; Van Landschoot, W.; Verbeke, D.; Seys, J.; Flanders Marine Institute (VLIZ): Belgium; (2025): SeaWatch-B Litter Dataset 2023-2024. Marine Data Archive.","MDAID":null,"Moratorium":1,"MDAURL":null,"CurrentDOI":1,"Active":1,"URL":null,"downloadURL":null}],"spcols":null,"keywords":[{"ThesaurusTerm":"Coastal environment","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":null,"Description":null,"OrigThesTerm":"Coastal environment","DutchTerm":"Kustmilieu","URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Environmental pollution","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":null,"Description":null,"OrigThesTerm":"Environmental pollution","DutchTerm":"Milieuvervuiling","URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Macrolitter","ThesTypID":0,"ThesType":null,"Code":null,"Description":null,"OrigThesTerm":"Macrolitter","DutchTerm":"","URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Marine pollution","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":null,"Description":null,"OrigThesTerm":"Marine pollution","DutchTerm":"Mariene vervuiling","URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Plastic litter","ThesTypID":0,"ThesType":null,"Code":null,"Description":null,"OrigThesTerm":"Plastic litter","DutchTerm":"Plastic zwerfvuil","URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Plastic pollution","ThesTypID":0,"ThesType":null,"Code":null,"Description":null,"OrigThesTerm":"Plastic pollution","DutchTerm":null,"URI":null,"DasKeywordDescr":null}],"parents":null,"children":null,"othrel":null,"othrelrev":null,"ownerships":[{"OrderNr":1,"Surname":"Fockedey","Firstname":"Nancy","Initials":"N.","PerPublicFlag":1,"AdrID":129032,"Email":"nancy.fockedey@vliz.be","InsPublicFlag":1,"Acronym":"VLIZ","OrigNameLangCode":"en","OrigNameLangID":15,"FullOrigName":"Flanders Marine Institute","InsOwnerCNT":6,"PersID":315,"InsID":36,"FullInstitute":"Vlaams Instituut voor de Zee","RoleID":61,"Role":"Data creator","OrigName":"Flanders Marine Institute","StandardName":"Vlaams Instituut voor de Zee","FullAcronym":"VLIZ","ORC":"https://orcid.org/0000-0002-0595-2321","ROR":"https://ror.org/0496vr396"},{"OrderNr":2,"Surname":"Dhondt","Firstname":"Charlotte","Initials":"C.A.L.","PerPublicFlag":1,"AdrID":169839,"Email":"charlotte.dhondt@vliz.be","InsPublicFlag":1,"Acronym":"VLIZ","OrigNameLangCode":"en","OrigNameLangID":15,"FullOrigName":"Flanders Marine Institute","InsOwnerCNT":6,"PersID":38627,"InsID":36,"FullInstitute":"Vlaams Instituut voor de Zee","RoleID":19,"Role":"Data manager","OrigName":"Flanders Marine Institute","StandardName":"Vlaams Instituut voor de Zee","FullAcronym":"VLIZ","ORC":"https://orcid.org/0000-0001-8456-3609","ROR":"https://ror.org/0496vr396"},{"OrderNr":3,"Surname":"Fockedey","Firstname":"Nancy","Initials":"N.","PerPublicFlag":1,"AdrID":129032,"Email":"nancy.fockedey@vliz.be","InsPublicFlag":1,"Acronym":"VLIZ","OrigNameLangCode":"en","OrigNameLangID":15,"FullOrigName":"Flanders Marine Institute","InsOwnerCNT":6,"PersID":315,"InsID":36,"FullInstitute":"Vlaams Instituut voor de Zee","RoleID":24,"Role":"Contact","OrigName":"Flanders Marine Institute","StandardName":"Vlaams Instituut voor de Zee","FullAcronym":"VLIZ","ORC":"https://orcid.org/0000-0002-0595-2321","ROR":"https://ror.org/0496vr396"},{"OrderNr":4,"Surname":"Guevara","Firstname":"Michelle","Initials":"M.","PerPublicFlag":1,"AdrID":170817,"Email":"michelle.guevara@vliz.be","InsPublicFlag":1,"Acronym":"VLIZ","OrigNameLangCode":"en","OrigNameLangID":15,"FullOrigName":"Flanders Marine Institute","InsOwnerCNT":6,"PersID":45954,"InsID":36,"FullInstitute":"Vlaams Instituut voor de Zee","RoleID":19,"Role":"Data manager","OrigName":"Flanders Marine Institute","StandardName":"Vlaams Instituut voor de Zee","FullAcronym":"VLIZ","ORC":"https://orcid.org/0009-0004-2932-2131","ROR":"https://ror.org/0496vr396"},{"OrderNr":5,"Surname":"Dhaeze","Firstname":"Marieke","Initials":"M.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":null,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":0,"PersID":45998,"InsID":null,"FullInstitute":null,"RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":null,"FullAcronym":null,"ORC":null,"ROR":null},{"OrderNr":6,"Surname":"Quartier","Firstname":"Mia","Initials":"M.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":null,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":0,"PersID":33083,"InsID":null,"FullInstitute":null,"RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":null,"FullAcronym":null,"ORC":null,"ROR":null},{"OrderNr":7,"Surname":"Vanhaecke","Firstname":"Paul","Initials":"P.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":null,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":0,"PersID":160,"InsID":null,"FullInstitute":null,"RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":null,"FullAcronym":null,"ORC":null,"ROR":null},{"OrderNr":8,"Surname":"Goossens","Firstname":"Hilde","Initials":"H.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":null,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":0,"PersID":2004,"InsID":null,"FullInstitute":null,"RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":null,"FullAcronym":null,"ORC":null,"ROR":null},{"OrderNr":9,"Surname":"Durinckx","Firstname":"Frank","Initials":"F.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":null,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":0,"PersID":40771,"InsID":null,"FullInstitute":null,"RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":null,"FullAcronym":null,"ORC":null,"ROR":null},{"OrderNr":10,"Surname":"Van Belle","Firstname":"André","Initials":"A.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":null,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":0,"PersID":45999,"InsID":null,"FullInstitute":null,"RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":null,"FullAcronym":null,"ORC":null,"ROR":null},{"OrderNr":12,"Surname":"Martens","Firstname":"Patrick","Initials":"P.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":null,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":0,"PersID":43992,"InsID":null,"FullInstitute":null,"RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":null,"FullAcronym":null,"ORC":null,"ROR":null},{"OrderNr":14,"Surname":"Coppens","Firstname":"Solange","Initials":"S.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":null,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":0,"PersID":33269,"InsID":null,"FullInstitute":null,"RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":null,"FullAcronym":null,"ORC":null,"ROR":null},{"OrderNr":15,"Surname":"Parrein","Firstname":"Lut","Initials":"L.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":null,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":0,"PersID":39506,"InsID":null,"FullInstitute":null,"RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":null,"FullAcronym":null,"ORC":null,"ROR":null},{"OrderNr":16,"Surname":"Van Vlasselaer","Firstname":"Jasper","Initials":null,"PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":null,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":0,"PersID":44755,"InsID":null,"FullInstitute":null,"RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":null,"FullAcronym":null,"ORC":"https://orcid.org/0000-0002-0508-0252","ROR":null},{"OrderNr":17,"Surname":"Hostyn","Firstname":"Luc","Initials":"L.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":null,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":0,"PersID":2952,"InsID":null,"FullInstitute":null,"RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":null,"FullAcronym":null,"ORC":null,"ROR":null},{"OrderNr":18,"Surname":"Willaert","Firstname":"Marleen","Initials":"M.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":null,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":0,"PersID":1992,"InsID":null,"FullInstitute":null,"RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":null,"FullAcronym":null,"ORC":null,"ROR":null},{"OrderNr":19,"Surname":"Van Landschoot","Firstname":"Willy","Initials":"W.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":null,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":0,"PersID":11137,"InsID":null,"FullInstitute":null,"RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":null,"FullAcronym":null,"ORC":null,"ROR":null},{"OrderNr":20,"Surname":"Verbeke","Firstname":"Dominique","Initials":"D.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":null,"Acronym":null,"OrigNameLangCode":null,"OrigNameLangID":null,"FullOrigName":null,"InsOwnerCNT":0,"PersID":6996,"InsID":null,"FullInstitute":null,"RoleID":61,"Role":"Data creator","OrigName":null,"StandardName":null,"FullAcronym":null,"ORC":null,"ROR":null},{"OrderNr":21,"Surname":"Seys","Firstname":"Jan","Initials":"J.","PerPublicFlag":1,"AdrID":169540,"Email":"jan.seys@vliz.be","InsPublicFlag":1,"Acronym":"VLIZ","OrigNameLangCode":"en","OrigNameLangID":15,"FullOrigName":"Flanders Marine Institute","InsOwnerCNT":6,"PersID":113,"InsID":36,"FullInstitute":"Vlaams Instituut voor de Zee","RoleID":61,"Role":"Data creator","OrigName":"Flanders Marine Institute","StandardName":"Vlaams Instituut voor de Zee","FullAcronym":"VLIZ","ORC":"https://orcid.org/0000-0003-1131-6740","ROR":"https://ror.org/0496vr396"},{"OrderNr":22,"Surname":null,"Firstname":null,"Initials":null,"PerPublicFlag":null,"AdrID":null,"Email":null,"InsPublicFlag":1,"Acronym":"VLIZ","OrigNameLangCode":"en","OrigNameLangID":15,"FullOrigName":"Flanders Marine Institute","InsOwnerCNT":6,"PersID":null,"InsID":36,"FullInstitute":"Vlaams Instituut voor de Zee","RoleID":61,"Role":"Data creator","OrigName":"Flanders Marine Institute","StandardName":"Vlaams Instituut voor de Zee","FullAcronym":"VLIZ","ORC":null,"ROR":"https://ror.org/0496vr396"}],"taxterms":null,"frameworks":null,"otherterms":[{"OtherTerm":"Macrolitter"},{"OtherTerm":"Plastic litter"},{"OtherTerm":"Plastic pollution"}],"temporal":[{"DasDateID":6454,"StartYear":2023,"EndYear":2024,"StartDay":11,"EndDay":13,"StartDate":"2023-02-11","EndDate":"2024-12-13","DasDate":null,"Resolution":"Seasonally","ResolutionNL":"Elk seizoen","Notes":null,"StartMonth0":2,"StartMonth":"February","StartMonthNL":"Februari","EndMonth0":12,"EndMonth":"December","EndMonthNL":"December","Progress":"Completed","ProgressNL":"Afgelopen"}],"geographical":[{"GeoTerm":"Belgian Coast","DasGeoID":15105,"DasGeoTerm":null,"DasID":8896,"GeotID":6234,"X":null,"Y":null,"MaxX":null,"MaxY":null,"StationName":null,"Precision":null,"CoordSystID":null,"GeoDatumID":null,"OrigCoordMinX":null,"OrigCoordMinY":null,"OrigCoordMaxX":null,"OrigCoordMaxY":null,"OrderNr":null,"Projection":null,"GeoDatum":null,"GeoObjectID":2550,"OrigGeoTerm":"Belgian Coast","DutchTerm":"Belgische kust"}],"meastypes":null,"dasthemes":[{"DasThemeID":34,"DasTheme":"Environmental quality/pollution > Pollution levels & monitoring","DasTheme0":"Pollution levels & monitoring","DutchTerm":"Vervuilingsniveau's & monitoring"}],"projects":[{"ProID":5022,"Acronym":"SeaWatch-B","Progress":"In Progress","StandardTitle":"Strandobservatienetwerk: de toestand van de Belgische Noordzee, gemeten door burgers","FP7Code":null,"GrantDOI":null,"FunderID":null,"FunderIDType":null,"FunderCodes":["OFI"]}],"refs":null,"urls":[],"pictures":null,"urlmaps":null,"spatreps":null,"fileformats":null,"resmessage":"","complete":1}