RT null T1 Results of the GMP2 study on POPs in Air A2 de Boer, Jacob A2 van Dijk, Rianne K1 persistent organic pollutant K1 air YR 2020 FD 2020-10 LK https://wedocs.unep.org/handle/20.500.11822/38598 UL https://wedocs.unep.org/handle/20.500.11822/38598 DS UN Environment Document Repository RD Sep 16, 2026