See the data version history.
The data of old versions are available only if the versions are included in Yearly fixed datasets.

 N₂O _ TAC6019 _ surface - flask _ NOAA _ ccgg

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2025-08-21	0002-6019-1003-01-02-3001 -2025-08-18-0913	The latest version
2024-12-25	0002-6019-1003-01-02-3001 -2025-01-01-0002
2024-08-30	0002-6019-1003-01-02-3001 -2024-08-01-0956	Included in Yearly Fixed Dataset 2024
2023-09-04	0002-6019-1003-01-02-3001 -2023-08-29-1126	Included in Yearly Fixed Dataset 2023
2022-08-18	0002-6019-1003-01-02-3001 -2022-08-02-1350	Included in Yearly Fixed Dataset 2022
2021-08-10	0002-6019-1003-01-02-3001 -2021-07-21-1350	Included in Yearly Fixed Dataset 2021
2020-08-13	0002-6019-1003-01-02-3001 -2020-07-31-0905	Included in Yearly Fixed Dataset 2020
2019-08-30	0002-6019-1003-01-02-3001 -2019-07-31-0800	Included in Yearly Fixed Dataset 2019
2018-09-27	0002-6019-1003-01-02-3001 -2018-09-06-1512	Included in Yearly Fixed Dataset 2018