T1 Assessment of the state of pollution of the Mediterranean Sea by persistent synthetic materials which may float, sink or remain in suspension T2 Evaluation de l'état de la pollution de la mer Méditerranée par les matières synthétiques persistantes qui peuvent flotter, couler ou rester en suspension A1 United Nations Environment Programme/Mediterranean Action Plan, PB UNEP/MAP YR 1991 FD 1991 LK https://wedocs.unep.org/handle/20.500.11822/437 UL https://wedocs.unep.org/handle/20.500.11822/437 DS UN Environment Document Repository RD Sep 19, 2026