Overflowing litter bins.
Litter dropped in towns and cities.
Litter left on the beach.
Released accidentally by factories.
Released by microfibers when clothes are washed when clothes are washed.
Products are flushed down the toilet and into the sewage system.
Lost fishing equipment
Dumped as waste in the sea by ships or fishing boats.
Lost shipping containers.
Badly managed rubbish collections.