RT null T1 Overview of the Guidelines for the Monitoring and Assessment of Plastic Litter in the Ocean A1 Joint Group of Experts on the Scientific Aspects of Marine Pollution, K1 plastic K1 marine environment K1 ocean dumping K1 environmental monitoring K1 environmental impact assessment K1 marine pollution K1 Marine Litter YR 2018 FD 2018 LK https://wedocs.unep.org/handle/20.500.11822/30898 UL https://wedocs.unep.org/handle/20.500.11822/30898 NO The report is intended to provide a step-by-step approach to designing and implementing a programme for monitoring marine plastic litter, assuming no prior knowledge. Using definitions and terminology that are widely accepted and understood by the user group is key to creating a harmonised approach and increasing the potential for sharing data and information. DS UN Environment Document Repository RD Sep 17, 2026