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Agency for Meteorology, Climatology and Geophysics, Agency on Hydrometeorology under Ministry of Emergency Situations of the Kyrgyz Republic, AGH University of Krakow, Aichi Air Environment Division, Atmospheric Chemistry Research Group School of Chemistry University of Bristol, Center for Environmental Science in Saitama, China Meteorological Administration, CNR-Institute of Atmospheric Pollution Research, Commonwealth Scientific and Industrial Research Organisation, Department of Applied Environmental Science, Stockholm University, Direccion Meteorologica de Chile, Direcion Nacional del Antartico- Istituto Antartico Argentino, Buenos Aires, Argentina, Egyptian Meteorological Authority, Environment and Climate Change Canada, Federal Environment Agency Austria, Finnish Meteorological Institute, Fisheries Research Agency, Fraunhofer-Institute for Atmospheric Environmental Research, German Environment Agency, German Meteorological Service, Global Monitoring Laboratory, NOAA, Hong Kong Observatory, Hungarian Meteorological Service, Institute for Nuclear Research, Institute for Nuclear Research and Nuclear Energy, Institute of Environmental Protection - NRI, Instituto Geofisico del Peru, Integrated Carbon Observation System Research Infrastructure, Italian Air Force Mountain Centre, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Japan Agency for Marine-Earth Science and Technology, Japan Meteorological Agency, Kenya Meteorological Department, Korea Meteorological Administration, Kyrgyz National University, Laboratoire des Sciences du Climat et de l'Environnement, Malaysian Meteorological Department, Meteorological Research Institute, National Institute for Environmental Studies, National Institute in Space Research, National Institute of Advanced Industrial Science and Technology, National Institute of Environmental Research, National Institute of Meteorological Research, KMA, National Institute of Public Health and the Environment, National Institute of Water & Atmospheric Research Ltd., National Meteorological Administration, National Physical Laboratory, National Research Council, Institute of Atmospheric Sciences and Climate, National Weather Service, Norwegian Institute for Air Research, Osaka University, Physics Institute, Climate and Environmental Physics, University of Bern, Ricerca sul Sistema Energetico - RSE S.p.A., Shizuoka University, South African Weather Service, State Meteorological Agency of Spain, Swiss Federal Laboratories for Materials Science and Technology, Tohoku University, University of Exeter, University of Malta, University of York, Viet Nam Meteorological and Hydrological Administration, Voeikov Main Geophysical Observatory,

AbdElhamid Gouda Elawadi (EMA), Adelaide Dinoi (ISAC), Ahmad Fairudz Jamaluddin (MMD), Akihiko Murata (JAMSTEC), Alcide di Sarra (ENEA), Alex Vermeulen (TNO), Alfred Micallef (UMLT), Andrea Lanza (RSE), Andreas Wolf (UBAA), Andrew Manning (UEA), Angelo Viola (ISAC), Ann Stavert (CSIRO), Anna Degorska (IOEP), Antti Laitinen (FMI), Ari Leskinen (FMI), Arifin, Ikhsan Buyung (BMKG), Arjan Hensen (TNO), Arnoud Frumau (TNO), Bert Scheeren (RUG), Birgitta Noone (ITM), Camille Yver-Kwok (LSCE), Carlos Torres (AEMET), Casper Labuschagne (SAWS), Cathrine Lund Myrhe (NILU), Cedric Couret (UBAG), Chris Lunder (NILU), Chris Rennick (NPL), Christian Hermans (OPAR), Christian Plass-Dulmer (DWD), Christoph Zellweger (Empa), Claudia Calidonna (ISAC), Colm Sweeney (NOAA), Dagmar Kubistin (DWD), Daisuke Goto (NIPR), Damiano Sferlazzo (ENEA), Daniel Gullì (ISAC), David Murithi Njiru (KMD), Doug Worthy (ECCC), Dylan Lopez (CEA), E Kozlova (UoE), Edouard Blandin (OPAR), Elise Guerette (CSIRO), ENYO Kazutaka (JMA), Eric Larmanou (SLU), Eunjung Kim (GERC), Fabrizio Anello (ENEA), Felice Dipace (IAFMS), Florin Nicodim (INMH), Francesco Apadula (RSE), Francesco Monteleone (ENEA), Francescopiero Calzolari (ISAC), Frank Meinhardt (UBAG), Gabriela Vítková (GCRI), Gaston Torres (DMC), Giorgia De Bendetto (ISAC), Giorgio Tranchida (IASCNR), Giovanni Giacalone (IASCNR), Giovanni Manca (JRC), Grant Forster (UEA), Gulzhan Esenzhanova (Kyrgyzhydromet), Hans-Christen (ITM), Hidekazu Matsueda (MRI), Hitoshi MUKAI (NIES), Horacio Rodriguez (IAA), Huilin Chen (RUG), Ignazio Fontana (IASCNR), Irene Lehner (CEC), Iris Buxbaum (UBAA), Ivan Mammarella (INAR), Ivano Ammoscato (ISAC), Janne Levula (INAR), Jaroslaw Necki (AGH), Jean-Marc Metzger (OPAR), Jennifer Müller-Williams (DWD), Jiyoung Kim (GERC), Joseph Pitt (UNIVBRIS), Juha Hatakka (FMI), Julie Helle (Andra), Jörg Klausen (MeteoSwiss), Kari Lehtinen (FMI), Kateřina Komínková (GCRI), Katie Read (UYRK), Kazuhiro Tsuboi (MRI), Kentaro ISHIJIMA (MRI), Kieran Stanley (UNIVBRIS), Kirk Thoning (NOAA), Koji Ohno (AICH), Krzysztof Skotak (IOEP), Laszlo Haszpra (ATOMKI), Laurent Langrene (Andra), LIANG Miao (CMA), Lino Condori (SMNA), Lise Lotte Sørensen (AU), Louis-Jeremy Rigouleau (CEA), Luana Malacaria (ISAC), Luciana Vanni Gatti (INPE), Lucy Carpenter (UYRK), Ludwig Ries (UBAG), Luigi Lauria (IAFMS), Lukasz Chmura (AGH), Léa Gest (OPAR), M.C.Lam (HKO), Mahesh Kumar Sha (OPAR), Marc Delmotte (OPAR), Maria Emilia Ruiz (SMNA), Mariantonia Bencardino (IIA), Markus Leuenberger (KUP), Marta Fuente-Lastra (CEA), Martin Saliba (UMLT), Martin Steinbacher (Empa), Martine De Mazière (OPAR), Marvic Grima (UMLT), Masao Ishii (MRI), Mathew Mutuku (KMD), Matthias Lindauer (DWD), Maurizio Busetto (ISAC), Meelis Mölder (CEC), Michal Heliasz (CEC), Michal V. Marek (GCRI), Michel Ramonet (LSCE), Mikaell Ottosson-Löfvenius (SLU), Mitsuo Toda (SHIZU), Mohan Kumar Sammathuria (MMD), Morgan Lopez (OPAR), Mutsumi Ishitsuka (IGP), Nahas, Alberth Christian (BMKG), Nguyen Nhat Anh (VNMHA), Nicolas Kumps (OPAR), Nina Paramonova (MGO), Okaem, Tanti Tritama (BMKG), Olivier Laurent (Andra), ONO Etsuro (JMA), Ove Hermansen (NILU), Paolo Cristofanelli (ISAC), Pasi Kolari (INAR), Paul Krummel (CSIRO), Paul Smith (SLU), Pedro Rivas (AEMET), Per Marklund (SLU), Peter Bergamaschi (JRC), Petri Keronen (INAR), Pim Van den Bulk (TNO), Ray Langenfelds (CSIRO), Reza Mahdi (BMKG), Risto Taipale (INAR), Ronald Spoor (RIVM), Salvatore Piacentino (ENEA), Salvatore Sinopoli (ISAC), SE-HWAN YANG (KMA), Shigeyuki Ishidoya (AIST), Shinji Morimoto (TU), Shohei Murayama (AIST), Simon O'Doherty (UNIVBRIS), Stefano Amendola (IAFMS), Stephen Matthew Platt (NILU), Sylvia Nichol (NIWA), Sébastien Conil (Andra), Takashi Machimura (OSAKAU), TAKATSUJI Shinya (JMA), Tatiana Di Iorio (ENEA), Thomas Trickl (IMKIFU), Tobias Biermann (CEC), Todor Arsov (INRNE), Tomohiro Oda (USRA), Toshinobu Machida (NIES), Tove Svendby (NILU), Tsuneo Ono (FRA), Tuomas Laurila (FMI), V. Sinyakov (KSNU), Victor Kazan (CEA), Viktor Ivakhov (MGO), Virgile Legendre (CEA), Vlastimil Hanuš (GCRI), W.H. Leung (HKO), Wael Khaled (EMA), Wolfgang Spangl (UBAA), Xin Lan (NOAA), Yosuke MUTO (SAIPF), Yosuke Niwa (NIES), Yousuke Sawa (MRI), Yukio TERAO (NIES), Zdzislaw Przadka (IOEP), Zeinab Salah (EMA), Zineb Mandrick (CEA), Zoë Loh (CSIRO), WDCGG; All CO₂ data contributed to WDCGG by GAW stations and mobiles by 2025-08-13, (Reference date^*: YYYY/MM/DD)

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