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Advanced Global Atmospheric Gases Experiment Science Team(AGAGE), Agency for Meteorology, Climatology and Geophysics, Atmospheric Chemistry Research Group School of Chemistry University of Bristol, British Antarctic Survey, CNR-Institute of Atmospheric Pollution Research, Commonwealth Scientific and Industrial Research Organisation, Czech Hydrometeorological Institute, Direccion Meteorologica de Chile, Environment and Climate Change Canada, Federal Environment Agency Austria, German Environment Agency, German Meteorological Service, Global Monitoring Laboratory, NOAA, Institute for Nuclear Research and Nuclear Energy, Japan Meteorological Agency, Kenya Meteorological Department, Korea Meteorological Administration, Laboratoire d'Aérologie, Laboratoire de Météorologie Physique, Laboratoire des Sciences du Climat et de l'Environnement, Meteorological Research Institute, National Institute in Space Research, National Institute of Public Health and the Environment, National Institute of Water & Atmospheric Research Ltd., National Research Council, Institute of Atmospheric Sciences and Climate, National Weather Service, Office National de la Meteorologie, Slovenian Environment Agency, South African Weather Service, State Meteorological Agency of Spain, Swiss Federal Laboratories for Materials Science and Technology, The Hong Kong Polytechnic University, University of Exeter, University of Malta, University of Urbino, Dep. of Pure and Applied Sciences (DISPEA), University of York, Viet Nam Meteorological and Hydrological Administration,

Adelaide Dinoi (ISAC), Adéla Holubová (CHMI), Anna Jones (BAS), Casper Labuschagne (SAWS), Cedric Couret (UBAG), Christian Plass-Dulmer (DWD), Claudia Calidonna (ISAC), Colm Sweeney (NOAA), Constance Okuku (KMD), Dagmar Kubistin (DWD), Daniel Gullì (ISAC), Dickon Young (UNIVBRIS), Doug Worthy (ECCC), E Kozlova (UoE), Emilio Cuevas (AEMET), Frank Meinhardt (UBAG), Gabrielle Petron (NOAA), Gaston Torres (DMC), Gerardo Carbajal Benítez (SMNA), Gheusi Francois (LA), Giorgio Tranchida (IASCNR), Hidekazu Matsueda (MRI), Ignazio Fontana (IASCNR), Iris Buxbaum (UBAA), Ivano Ammoscato (ISAC), Ivo Kalapov (INRNE), Janja Turšič (ARSO), Jean Sciare (LSCE), Jennifer Müller-Williams (DWD), Jgor Arduini (UNIURB), Jörg Klausen (MeteoSwiss), Ka Se Lam (PolyU), Katie Read (UYRK), Kazuhiro Tsuboi (MRI), Kieran Stanley (UNIVBRIS), Lino Condori (SMNA), Luciana Vanni Gatti (INPE), Lucy Carpenter (UYRK), Ludwig Ries (UBAG), Maria Elena Barlasina (SMNA), Mariantonia Bencardino (IIA), Marijana Murovec (ARSO), Martin Saliba (UMLT), Martin Steinbacher (Empa), Marvic Grima (UMLT), Masao Ishii (MRI), Mateja Gjerek (ARSO), Matthias Lindauer (DWD), Meyerfeld Yves (LA), Michela Maione (UNIURB), Nahas, Alberth Christian (BMKG), Nguyen Nhat Anh (VNMHA), Okaem, Tanti Tritama (BMKG), Paolo Cristofanelli (ISAC), Paul Krummel (CSIRO), Pichon Jean-Marc (LAMP), Ray Langenfelds (CSIRO), Ray Wang (EAS), Raymond Ellul (UMLT), Reza Mahdi (BMKG), Ronald Spoor (RIVM), SAITO Kazuyuki (JMA), Sidi Baika (ONM), Simon O'Doherty (UNIVBRIS), Stephan Henne (Empa), Sumin Kim (NIMS), Sylvia Nichol (NIWA), Thomas Seitz (Empa), Thumeka Mkololo (SAWS), Warren Joubert (SAWS), Wolfgang Spangl (UBAA), Zoë Loh (CSIRO), WDCGG; All CO data contributed to WDCGG by GAW stations and mobiles by 2020-09-28, https://doi.org/10.50849/WDCGG_CO_ALL_2020 (Reference date^*: YYYY/MM/DD)

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