RT null T1 Appendix 5: Statistical Evaluation - Bi-ennial Global Interlaboratory Assessment on Persistent Organic Pollutants – Third Round 2016/2017 A1 United Nations Environment Programme, K1 statistical data K1 persistent organic pollutant YR 2017 FD 2017-03 LK https://wedocs.unep.org/handle/20.500.11822/22377 UL https://wedocs.unep.org/handle/20.500.11822/22377 DS UN Environment Document Repository RD Sep 21, 2026