Plastic pollution is not only a question of waste. A significant part of the problem is generated long before plastic becomes an object, in the industrial and logistical processes through which it is made, moved and transferred.
When we picture plastic pollution, we tend to think of bottles, bags, packaging, nets and fragments washed up on beaches or floating in the sea. This is an accurate image, but an incomplete one. It focuses on consumption and disposal, overlooking an earlier stage that receives far less public attention but is equally important. Before any object exists, and before any waste is created, plastic exists as a raw material, moving through a supply chain that includes production, storage, transport, processing and distribution.
Plastic pellets are the small granules used as the starting point for manufacturing plastic goods. EU Regulation 2025/2365 defines them as plastic material in granular form intended for industrial processing. This is a definition that matters because it draws attention not to microplastics already in the environment, but to a raw material that can be lost before it is ever used, in the ordinary course of industrial activity.
The problem with pellets comes down to their physical nature and how they are handled: they are small and light, produced and moved in large quantities. They can escape during loading and unloading, in warehouses, factories, port terminals and at every stage of transport and processing. Once released, they can reach soil, drainage systems, waterways and the sea. Their size makes recovery extremely difficult, and their durability means they persist in ecosystems for a long time.
This is not a minor issue. The Council of the European Union has identified pellets as the third largest source of unintentional microplastic release into the EU environment, after paints and tyres. Estimated annual losses range from 52,000 to 184,000 tonnes, figures cited by European institutions in 2025 that place pellet dispersal firmly among the structural problems of the plastics industry, not its marginal accidents.
This matters both at a cultural and regulatory level. Talking about pellets means acknowledging that plastic pollution is not only caused by littering, poor consumer behaviour or inadequate recycling. Contamination can begin before any product exists, when plastic is simply a material in transit. Responsibility, therefore, does not rest only with the end user. It extends to manufacturers, operators, transporters, port systems and the supply chains that move plastic around the world.
The new European regulation addresses this directly. Regulation (EU) 2025/2365, published in the Official Journal of the European Union in November 2025, introduces measures to prevent pellet losses and reduce microplastic pollution. The Commission has confirmed that the rules entered into force on 16 December 2025, with training materials and technical guidance to follow by December 2026. The logic is significant: rather than dealing with waste already formed, the regulation targets the conditions that allow material to escape in the first place. Prevention, containment, clean-up, risk management, documentation and transport requirements all shift the focus from cleaning up damage to stopping it at the source. The EU Council has underlined the urgency of strengthening pellet management across the entire supply chain, including specific requirements for maritime transport.
For the protection of rivers, lakes and seas, the implications are real. Aquatic ecosystems are not only threatened by the waste that visibly reaches them. They can be contaminated by material lost elsewhere: in a factory, a depot, a port or along a transport route. Pellets do not always travel directly. They can be carried by rain, channelled into surface runoff, reaching waterways gradually and invisibly.
None of this diminishes the importance of beach and river clean-ups. It simply clarifies what they can and cannot do. Collection works on contamination that is already there. Prevention works before the material enters the environment. For pellets, this distinction is crucial: once dispersed, recovery is difficult, partial and rarely proportionate to the quantity released.
Plastic, in other words, needs to be understood not only as waste but as an industrial material in circulation. Protecting aquatic ecosystems means paying attention to what happens long before contamination reaches them.