An inshore–offshore sorting system revealed from global classification of ocean litter

An inshore–offshore sorting system revealed from global classification of ocean litter


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ABSTRACT The surge of research on marine litter is generating important information on its inputs, distribution and impacts, but data on the nature and origin of the litter remain scattered.


Here, we harmonize worldwide litter-type inventories across seven major aquatic environments and find that a set of plastic items from take-out food and beverages largely dominates global


litter, followed by those resulting from fishing activities. Compositional differences between environments point to a trend for litter to be trapped in nearshore areas so that land-sourced


plastic is released to the open ocean, predominantly as small plastic fragments. The world differences in the composition of the nearshore litter sink reflected socioeconomic drivers, with a


reduced relative weight of single-use items in high-income countries. Overall, this study helps inform urgently needed actions to manage the production, use and fate of the most polluting


human-made items on our planet, but the challenge remains substantial. Access through your institution Buy or subscribe This is a preview of subscription content, access via your institution


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subscriptions * Read our FAQs * Contact customer support SIMILAR CONTENT BEING VIEWED BY OTHERS FLOATING MACROLITTER LEAKED FROM EUROPE INTO THE OCEAN Article 10 June 2021 INDUSTRIALISED


FISHING NATIONS LARGELY CONTRIBUTE TO FLOATING PLASTIC POLLUTION IN THE NORTH PACIFIC SUBTROPICAL GYRE Article Open access 01 September 2022 GEOSPATIAL DISTRIBUTION AND ANTHROPOGENIC LITTER


IMPACT ON COASTAL MANGROVE ECOSYSTEMS FROM THE SAUDI ARABIA COAST OF THE GULF Article Open access 07 May 2025 DATA AVAILABILITY Supplementary text and additional figures and tables can be


found in the supplementary material. The data that support the findings of this study, as well as a tool (Excel macro) to automatically convert any litter category list into the joint master


list (JML) used here, are available at https://marinelitterlab.eu/ and from the corresponding authors upon request. REFERENCES * Galgani, F., Hanke, G. & Maes, T. in _Marine


Anthropogenic Litter_ (eds Bergmann, M. et al.) 29–56 (Springer, 2015). * Crippa, M. et al. _A Circular Economy for Plastics: Insights from Research and Innovation to Inform Policy and


Funding Decisions_ (European Commission, 2019). * Weideman, E. A., Perold, V., Arnold, G. & Ryan, P. G. Quantifying changes in litter loads in urban stormwater run-off from Cape Town,


South Africa, over the last two decades. _Sci. Total Environ._ 724, 138310 (2020). Article  CAS  Google Scholar  * Jambeck, J. R. et al. Plastic waste inputs from land into the ocean.


_Science_ 347, 768–771 (2015). Article  CAS  Google Scholar  * Cózar, A. et al. Plastic debris in the open ocean. _Proc. Natl Acad. Sci. USA_111, 10239–10244 (2014). Article  Google Scholar


  * Eriksen, M. et al. Plastic pollution in the world’s oceans: more than 5 trillion plastic pieces weighing over 250,000 tons afloat at sea. _PLoS ONE_ 9, e111913 (2014). Article  Google


Scholar  * van Sebille, E. et al. A global inventory of small floating plastic debris. _Environ. Res. Lett._ 10, 124006 (2015). Article  Google Scholar  * Lebreton, L. et al. Evidence that


the Great Pacific Garbage Patch is rapidly accumulating plastic. _Sci. Rep._ 8, 4666 (2018). Article  CAS  Google Scholar  * _Ocean Conservation 2011_ Annual Report (International Ocean


Conservancy, 2011). * _Marine LitterWatch_ (European Environment Agency, accessed 20 April 2018);


https://www.eea.europa.eu/themes/water/europes-seas-and-coasts/assessments/marine-litterwatch/data-and-results/marine-litterwatch-data-viewer * Canals, M. et al. The quest for seafloor


macrolitter: a critical review of background knowledge, current methods and future prospects. _Environ. Res. Lett._ 16, 023001 (2021). Google Scholar  * Ó Briain, O., Marques Mendes, A. R.,


McCarron, S., Healy, M. G. & Morrison, L. The role of wet wipes and sanitary towels as a source of white microplastic fibres in the marine environment. _Water Res_. 182, 116021 (2020). *


Richardson, K., Hardesty, B. D. & Wilcox, C. Estimates of fishing gear loss rates at a global scale: a literature review and meta-analysis. _Fish Fish._ 20, 1218–1231 (2019). Article 


Google Scholar  * Morritt, D., Stefanoudis, P. V., Pearce, D., Crimmen, O. A. & Clark, P. F. Plastic in the Thames: a river runs through it. _Mar. Pollut. Bull._ 78, 196–200 (2014).


Article  CAS  Google Scholar  * de Stephanis, R., Giménez, J., Carpinelli, E., Gutierrez-Exposito, C. & Cañadas, A. As main meal for sperm whales: plastics debris. _Mar. Pollut. Bull._


69, 206–214 (2013). Article  Google Scholar  * Gilardi, K. et al. _Sea-Based Sources of Marine Litter—A Review of Current Knowledge and Assessment of Data Gaps_ (FAO, 2020). * Ryan, P. G.,


Dilley, B. J., Ronconi, R. A. & Connan, M. Rapid increase in Asian bottles in the South Atlantic Ocean indicates major debris inputs from ships. _Proc. Natl Acad. Sci. USA_ 116,


20892–20897 (2019). Article  CAS  Google Scholar  * Roman, L. et al. A global assessment of the relationship between anthropogenic debris on land and the seafloor. _Environ. Pollut._ 264,


114663 (2020). Article  CAS  Google Scholar  * _Plastics—The Facts 2017_ (Plastic Europe, 2017). * Andrady, A. L. in _Marine Anthropogenic Litter_ (eds Bergmann, M. et al.) 57–72 (Springer,


2015). * Ryan, P. G. Does size and buoyancy affect the long-distance transport of floating debris? _Environ. Res. Lett._ 10, 84019 (2015). Article  Google Scholar  * Lebreton, L., Egger, M.


& Slat, B. A global mass budget for positively buoyant macroplastic debris in the ocean. _Sci. Rep._ 9, 12922 (2019). Article  Google Scholar  * Maximenko, N., Hafner, J. & Niiler,


P. Pathways of marine debris derived from trajectories of Lagrangian drifters. _Mar. Pollut. Bull._ 65, 51–62 (2012). Article  CAS  Google Scholar  * Lebreton, L.-M., Greer, S. D. &


Borrero, J. C. Numerical modelling of floating debris in the world’s oceans. _Mar. Pollut. Bull._ 64, 653–661 (2012). Article  CAS  Google Scholar  * Van Sebille, E., England, M. H. &


Froyland, G. Origin, dynamics and evolution of ocean garbage patches from observed surface drifters. _Environ. Res. Lett._ 7, 44040 (2012). Article  Google Scholar  * Yoon, J.-H., Kawano, S.


& Igawa, S. Modeling of marine litter drift and beaching in the Japan Sea. _Mar. Pollut. Bull._ 60, 448–463 (2010). Article  CAS  Google Scholar  * Isobe, A. et al. Selective transport


of microplastics and mesoplastics by drifting in coastal waters. _Mar. Pollut. Bull._ 89, 324–330 (2014). Article  CAS  Google Scholar  * Kukulka, T., Proskurowski, G., Morét-Ferguson, S.,


Meyer, D. W. & Law, K. L. The effect of wind mixing on the vertical distribution of buoyant plastic debris. _Geophys. Res. Lett._ 39, L07601 (2012). Article  Google Scholar  * Reisser,


J. et al. The vertical distribution of buoyant plastics at sea: an observational study in the North Atlantic Gyre. _Biogeosciences_ 12, 1249–1256 (2015). Article  Google Scholar  * Polasek,


L. et al. Marine debris in five national parks in Alaska. _Mar. Pollut. Bull._ 117, 371–379 (2017). Article  CAS  Google Scholar  * Ko, C.-Y. et al. Monitoring multi-year macro ocean litter


dynamics and backward-tracking simulation of litter origins on a remote island in the South China Sea. _Environ. Res. Lett._ 13, 44021 (2018). Article  Google Scholar  * Maximenko, N.,


Hafner, J., Kamachi, M. & MacFadyen, A. Numerical simulations of debris drift from the Great Japan Tsunami of 2011 and their verification with observational reports. _Mar. Pollut. Bull._


132, 5–25 (2018). Article  CAS  Google Scholar  * Egger, M. et al. A spatially variable scarcity of floating microplastics in the eastern North Pacific Ocean. _Environ. Res. Lett._ 15,


114056 (2020). Article  CAS  Google Scholar  * Olivelli, A., Hardesty, B. D. & Wilcox, C. Coastal margins and backshores represent a major sink for marine debris: insights from a


continental-scale analysis. _Environ. Res. Lett._ 15, 074037 (2020). Article  Google Scholar  * Pedrotti, M. L. et al. Changes in the floating plastic pollution of the Mediterranean Sea in


relation to the distance to land. _PLoS ONE_ 11, e0161581 (2016). Article  Google Scholar  * Efimova, I., Bagaeva, M., Bagaev, A., Kileso, A. & Chubarenko, I. P. Secondary microplastics


generation in the sea swash zone with coarse bottom sediments: Laboratory experiments. _Front. Mar. Sci_. 5, 313 (2018). * Lavers, J. L. & Bond, A. L. Exceptional and rapid accumulation


of anthropogenic debris on one of the world’s most remote and pristine islands. _Proc. Natl Acad. Sci. USA_ 114, 6052–6055 (2017). Article  CAS  Google Scholar  * Pham, C. K. et al. Marine


litter distribution and density in European seas, from the shelves to deep basins. _PLoS ONE_ 9, e95839 (2014). Article  Google Scholar  * Tubau, X. et al. Marine litter on the floor of deep


submarine canyons of the northwestern Mediterranean Sea: the role of hydrodynamic processes. _Prog. Oceanogr._ 134, 379–403 (2015). Article  Google Scholar  * van Sebille, E. et al. The


physical oceanography of the transport of floating marine debris. _Environ. Res. Lett._ 15, 023003 (2020). Article  Google Scholar  * Barboza, L. G. A. et al. in _World Seas: An


Environmental Evaluation_ Vol. 3 (ed. Sheppard, C.) Ch 17 (Elsevier, 2018). * _Directive (Eu) 2019/904 of the European Parliament and of the Council of 5 June 2019 on the Reduction of the


Impact of Certain Plastic Products on the Environment_ (European Council, 2019). * _The Environmental Protection (Plastic Straws, Cotton Buds and Stirrers) (England) Regulations 2020_ UK


Draft Legislation (UK DEFRA, 2020). * Leal Filho, W. et al. An overview of the problems posed by plastic products and the role of extended producer responsibility in Europe. _J. Clean.


Prod._ 214, 550–558 (2019). Article  Google Scholar  * Hogg, D. et al. _Options and Feasibility of a European Refund System for Metal Beverage Cans_ Final Report (Publications Office of the


European Union, 2011). * _Guidelines for the Implementation of MARPOL Annex V_ (International Maritime Organization, 2017);


http://www.imo.org/en/OurWork/Environment/PollutionPrevention/Garbage/Documents/MEPC.295%2871%29.pdf * Ryan, P. G., Pichegru, L., Perold, V. & Moloney, C. L. Monitoring marine


plastics—will we know if we are making a difference? _S. Afr. J. Sci._ 116, 7678 (2020). CAS  Google Scholar  * _Data Bank_ (World Bank, accessed 20 April 2018);


http://databank.worldbank.org/data/home.aspx * Consoli, P. et al. Characterization of seafloor litter on Mediterranean shallow coastal waters: evidence from Dive Against Debris®, a citizen


science monitoring approach. _Mar. Pollut. Bull._ 150, 110763 (2020). Article  CAS  Google Scholar  Download references ACKNOWLEDGEMENTS This work has been financed by the Spanish Ministry


of Science, Innovation and Universities, CTM2016-77106-R, AEI/FEDER/UE through the MIDaS project. The 2014-2020 ERDF Operational Programme and the Regional Government of Andalusia (ref.


FEDER-UCA18-107828, PLAn project) supported C.M.-C., and the BBVA Foundation (PLASTREND project) supported D.G.-F.. The European Research Council (ERC) under the European Union’s Horizon


2020 research and innovation programme (grant agreement no_715386) supported E.v.S. This study is the outcome of the huge labour of many dedicated volunteers and researchers who have cleaned


and recorded litter all around the world together with ECOPUERTOS, Marine Litter Watch, Ocean Conservancy, Project Aware, The Great Canadian Shoreline Cleanup, The Ocean Cleanup and RIMMEL.


The icons displayed in the figures were originally provided by Surfrider Foundation Europe. Thanks to A. L. Fanning for valuable comments on the document. AUTHOR INFORMATION AUTHORS AND


AFFILIATIONS * Departamento de Biología, University of Cadiz and European University of the Seas (SEA-EU), Instituto Universitario de Investigación Marina (INMAR), Puerto Real, Spain Carmen


Morales-Caselles, Josué Viejo, Elisa Martí, Daniel González-Fernández, J. Ignacio González-Gordillo, Gonzalo M. Arroyo, Fidel Echevarría, José A. Gálvez, Carlos M. García, Ana Bartual, Gorka


Markalain & Andrés Cózar * Project Aware, Dive Against Debris, Melbourne, Victoria, Australia Hannah Pragnell-Raasch * Asociación Proyecto Ecopuertos, Cádiz, Spain Enrique Montero *


European Commission Joint Research Centre, Directorate D – Sustainable Resources, European Commission, Ispra, Italy Georg Hanke * Posidonia Green Project, Barcelona, Spain Vanessa S. Salvo *


AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Pasaia, Spain Oihane C. Basurko * Ocean Conservancy, Portland, OR, USA Nicholas Mallos * The Ocean Cleanup, Rotterdam,


Netherlands Laurent Lebreton * Hydrology and Quantitative Water Management Group, Wageningen University, Wageningen, Netherlands Tim van Emmerik * Red Sea Research Centre (RSRC) and


Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology, Thuwal, Saudi Arabia Carlos M. Duarte * Institute for Marine and Atmospheric Research


Utrecht, Utrecht University, Utrecht, Netherlands Erik van Sebille * IFREMER (French Institute for Research and Exploitation of the Sea), Immeuble Agostini, Z.I. Furiani, Bastia, France


François Galgani * Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, British Columbia, Canada Peter S. Ross * UNEP/ Mediterranean Action Plan,


Barcelona Convention Secretariat, Athens, Greece Christos Ioakeimidis * Research Institute for Applied Mechanics, Kyushu University, Kasuga, Japan Atsuhiko Isobe Authors * Carmen


Morales-Caselles View author publications You can also search for this author inPubMed Google Scholar * Josué Viejo View author publications You can also search for this author inPubMed 


Google Scholar * Elisa Martí View author publications You can also search for this author inPubMed Google Scholar * Daniel González-Fernández View author publications You can also search for


this author inPubMed Google Scholar * Hannah Pragnell-Raasch View author publications You can also search for this author inPubMed Google Scholar * J. Ignacio González-Gordillo View author


publications You can also search for this author inPubMed Google Scholar * Enrique Montero View author publications You can also search for this author inPubMed Google Scholar * Gonzalo M.


Arroyo View author publications You can also search for this author inPubMed Google Scholar * Georg Hanke View author publications You can also search for this author inPubMed Google Scholar


* Vanessa S. Salvo View author publications You can also search for this author inPubMed Google Scholar * Oihane C. Basurko View author publications You can also search for this author


inPubMed Google Scholar * Nicholas Mallos View author publications You can also search for this author inPubMed Google Scholar * Laurent Lebreton View author publications You can also search


for this author inPubMed Google Scholar * Fidel Echevarría View author publications You can also search for this author inPubMed Google Scholar * Tim van Emmerik View author publications


You can also search for this author inPubMed Google Scholar * Carlos M. Duarte View author publications You can also search for this author inPubMed Google Scholar * José A. Gálvez View


author publications You can also search for this author inPubMed Google Scholar * Erik van Sebille View author publications You can also search for this author inPubMed Google Scholar *


François Galgani View author publications You can also search for this author inPubMed Google Scholar * Carlos M. García View author publications You can also search for this author inPubMed


 Google Scholar * Peter S. Ross View author publications You can also search for this author inPubMed Google Scholar * Ana Bartual View author publications You can also search for this


author inPubMed Google Scholar * Christos Ioakeimidis View author publications You can also search for this author inPubMed Google Scholar * Gorka Markalain View author publications You can


also search for this author inPubMed Google Scholar * Atsuhiko Isobe View author publications You can also search for this author inPubMed Google Scholar * Andrés Cózar View author


publications You can also search for this author inPubMed Google Scholar CONTRIBUTIONS C.M.-C. and A.C. conceived and drafted the present study; they contributed equally to the work. A.C.,


D.G.-F., H.P.-R., J.I.G.-G., E. Montero, G.M.A., G.H., O.C.B., N.M., L.L., T.v.E. and C.I. participated in the design and coordination of the field surveys. C.M.-C., J.V., A.C., E. Martí and


D.G.-F. analysed the data. All authors read and commented on the manuscript. CORRESPONDING AUTHORS Correspondence to Carmen Morales-Caselles or Andrés Cózar. ETHICS DECLARATIONS COMPETING


INTERESTS The authors declare no competing interests. ADDITIONAL INFORMATION PEER REVIEW INFORMATION _Nature Sustainability_ thanks Lauren Roman and the other, anonymous, reviewer(s) for


their contribution to the peer review of this work. PUBLISHER’S NOTE Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.


SUPPLEMENTARY INFORMATION SUPPLEMENTARY INFORMATION Supplementary Methods, Table 1, Figs. 1–8 and references. REPORTING SUMMARY SUPPLEMENTARY TABLES Supplementary Tables 2–4. SUPPLEMENTARY


DATA Conversion tool. RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Morales-Caselles, C., Viejo, J., Martí, E. _et al._ An inshore–offshore sorting


system revealed from global classification of ocean litter. _Nat Sustain_ 4, 484–493 (2021). https://doi.org/10.1038/s41893-021-00720-8 Download citation * Received: 28 May 2020 * Accepted:


15 April 2021 * Published: 10 June 2021 * Issue Date: June 2021 * DOI: https://doi.org/10.1038/s41893-021-00720-8 SHARE THIS ARTICLE Anyone you share the following link with will be able to


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