Methods for determining the geographical origin and age of beach litter:Challenges and opportunities

Beach litter analysis is a cost-effective tool to identify litter sources and subsequent management actions. However, standard beach litter protocols are not generally developed to identify litter's origins and age. Data from Svalbard (North Atlantic/ Arctic Ocean) were therefore used to explor...

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Bibliographic Details
Published in:Marine Pollution Bulletin
Main Authors: Falk-Andersson, Jannike, Tairova, Zhanna, Tokvam Drægni, Tora, Larsen Haarr, Marthe
Format: Article in Journal/Newspaper
Language:English
Published: 2021
Subjects:
Online Access:https://pure.au.dk/portal/da/publications/methods-for-determining-the-geographical-origin-and-age-of-beach-litter(53d7d1e0-5523-4469-b4af-690bba90bad8).html
https://doi.org/10.1016/j.marpolbul.2021.112901
http://www.scopus.com/inward/record.url?scp=85114118103&partnerID=8YFLogxK
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Summary:Beach litter analysis is a cost-effective tool to identify litter sources and subsequent management actions. However, standard beach litter protocols are not generally developed to identify litter's origins and age. Data from Svalbard (North Atlantic/ Arctic Ocean) were therefore used to explore reliable methods to fill this knowledge gap. Written text and country specific brands, as well as printed production or expiry dates proved the most efficient and reliable identifiers. The use of product design and logos considerably increased the proportion of items that could be sourced (by 19%) and dated (by 22%). The successful use of these is defined by the expertise of the analysing team and may introduce bias. The bias can be reduced by developing picture guides and involving stakeholders. The analyses showed that littering is on-going and that the area's major fishing nations, Norway and Russia, dominated the identified litter (38% and 14%, respectively).