EU Introduces First-Ever Limits on Seafloor Litter to Strengthen Marine Protection
- WFO Team
- 2 days ago
- 2 min read
The European Union has taken a historic step in the fight against marine pollution by introducing the first-ever threshold limits for litter found on the seafloor. These new rules aim to protect marine ecosystems from underwater waste, which is often invisible yet extremely harmful.
Under the updated framework, EU Member States must ensure that monitored areas do not experience any increase in seafloor litter collected through trawl surveys. For areas surveyed visually—using underwater cameras or imagery—the EU has set a clear limit of no more than one litter item per 1,000 square metres. Initially, these thresholds apply to waters up to 200 metres deep.
This decision comes in response to growing evidence that a large share of marine litter, especially plastics, eventually sinks and accumulates on the ocean floor. Seafloor pollution poses a severe threat to marine life, damages fishing and tourism sectors, and can ultimately affect human health.
Until now, data on seafloor litter mostly came from waste accidentally caught by fishing nets, which varied significantly across regions and did not provide a complete picture. The new monitoring methods, based on standardized, image-based surveys, will offer more reliable and comparable data across European waters—allowing policymakers to identify pollution hotspots and take targeted action.
Member States must now incorporate these thresholds into their national marine strategies under the Marine Strategy Framework Directive. The EU is also exploring future measures, including thresholds for the most harmful types of litter and monitoring in deeper waters.
This initiative strengthens the EU’s broader Zero Pollution ambition and follows previous actions such as coastline litter limits and regulations tackling single-use plastics and packaging waste.
By setting clear and enforceable limits for seafloor litter, the EU is sending a strong message about the importance of healthy oceans. These new standards mark an essential step towards cleaner seas, restored biodiversity, and sustainable marine activities.
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