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T1 Brief on the Guidelines for the Monitoring and Assessment of Plastic Litter in the Ocean - Recommendations and Future Steps
A1 Joint Group of Experts on the Scientific Aspects of Marine Pollution, 
K1 marine environment
K1 plastic
K1 ocean dumping
K1 environmental monitoring
K1 environmental impact assessment
K1 marine pollution
K1 textile
K1 Marine Litter
YR 2019
FD 2019
LK https://wedocs.unep.org/handle/20.500.11822/30695
UL https://wedocs.unep.org/handle/20.500.11822/30695
NO The principle purpose of this report is to provide recommendations, advice and practical guidance for establishing programmes to monitor and assess the distribution and abundance of plastic litter, also referred to as plastic debris, in the ocean. It is a product of the GESAMP Working Group (WG40) on ‘Sources, fate and effects of plastics and microplastics in the marine environment’, co-led by the Intergovernmental Commission on Oceanography (IOC-UNESCO) and the United Nations Environment Programme (UNEP). The term ‘plastic litter’ is used throughout, but is synonymous with ‘plastic debris’. In some cases the report refers to monitoring strategies and sampling protocols that have been designed for the monitoring of all forms of marine litter (i.e. processed wood, metal, textiles, glass, munitions, and plastics).
DS UN Environment Document Repository
RD Sep 18, 2026