The Plastic0pyr project has developed protocols where you can also investigate the quantity and quality of plastic waste in aquatic ecosystems.
Delfina Cornejo and Henar Margenat, researchers in the project, have prepared a series of videos where they explain step by step how to work in the field, how to identify plastics and how to enter data in the Marine Debris Tracker app.
Fieldwork tutorial
Marine Debris Tracker
If you want to consult all the available materials you can do so at the following link.