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Advanced Global Atmospheric Gases Experiment Science Team(AGAGE), Atmospheric Chemistry Research Group School of Chemistry University of Bristol, Commonwealth Scientific and Industrial Research Organisation, Environment and Climate Change Canada, German Environment Agency, German Meteorological Service, Global Monitoring Laboratory, NOAA, Integrated Carbon Observation System Research Infrastructure, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Japan Meteorological Agency, Korea Meteorological Administration, Meteorological Research Institute, Nagoya University, National Institute for Environmental Studies, National Institute in Space Research, National Institute of Environmental Research, National Institute of Meteorological Research, KMA, National Institute of Water & Atmospheric Research Ltd., National Physical Laboratory, Norwegian Institute for Air Research, South African Weather Service, State Meteorological Agency of Spain, Swiss Federal Laboratories for Materials Science and Technology, Tohoku University, University of Exeter, University of Urbino, Dep. of Pure and Applied Sciences (DISPEA),

A. Matsunami (NAGOU), Alcide di Sarra (ENEA), Alex Vermeulen (TNO), Andrew Manning (UEA), Arjan Hensen (TNO), Arnoud Frumau (TNO), Bert Scheeren (RUG), Camille Yver-Kwok (LSCE), Carlos Torres (AEMET), Cedric Couret (UBAG), Chris Rennick (NPL), Christian Plass-Dulmer (DWD), Christina Harth (SIO), Colm Sweeney (NOAA), Dafina Kikaj (NPL), Dagmar Kubistin (DWD), Damiano Sferlazzo (ENEA), Debra J. Mondeel (NOAA), Dickon Young (UNIVBRIS), Doug Worthy (ECCC), Dylan Lopez (CEA), E Kozlova (UoE), Edward Chung (NPL), Elise Guerette (CSIRO), Emmal Safi (NPL), ENYO Kazutaka (JMA), Eunjung Kim (GERC), Francesco Monteleone (ENEA), Frank Meinhardt (UBAG), Gabriela Vítková (GCRI), Geoffrey S. Dutton (NOAA), Giovanni Manca (JRC), Grant Forster (UEA), Huilin Chen (RUG), J. David Nance (NOAA), Jennifer Müller-Williams (DWD), Jens Mühle (SIO), Jgor Arduini (UNIURB), Jiyoung Kim (GERC), Joseph Pitt (UNIVBRIS), Julie Helle (Andra), Kateřina Komínková (GCRI), Kazuhiro Tsuboi (MRI), Kentaro ISHIJIMA (MRI), Kieran Stanley (UNIVBRIS), Laurent Langrene (Andra), Louis-Jeremy Rigouleau (CEA), Luciana Vanni Gatti (INPE), Lynwill Martin (SAWS), Marc Delmotte (OPAR), Marta Fuente-Lastra (CEA), Martin Steinbacher (Empa), Matthias Lindauer (DWD), Michal V. Marek (GCRI), Michel Ramonet (LSCE), Morgan Lopez (OPAR), Olivier Laurent (Andra), ONO Etsuro (JMA), Ove Hermansen (NILU), Paul Fraser (CSIRO), Paul Krummel (CSIRO), Pedro Rivas (AEMET), Peter Bergamaschi (JRC), Pim Van den Bulk (TNO), Ray F. Weiss (SIO), Ray Langenfelds (CSIRO), Ray Wang (EAS), Salvatore Piacentino (ENEA), SE-HWAN YANG (KMA), Shinji Morimoto (TU), Simon O'Doherty (UNIVBRIS), Stephen A. Montzka (NOAA), Sylvia Nichol (NIWA), Sébastien Conil (Andra), TAKATSUJI Shinya (JMA), Tatiana Di Iorio (ENEA), Thomas Seitz (Empa), Thumeka Mkololo (SAWS), Victor Kazan (CEA), Virgile Legendre (CEA), Vlastimil Hanuš (GCRI), Xin Lan (NOAA), Yasunori TOHJIMA (NIES), Zineb Mandrick (CEA), Zoë Loh (CSIRO), WDCGG; All N₂O data contributed to WDCGG by GAW stations and mobiles by 2025-09-10, (Reference date^*: YYYY/MM/DD)

* As the reference date, please indicate the date you downloaded the files.