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

 HCFC-22 _ NWR4023 _ surface - insitu _ NOAA _ hats-cats

Updated Date	Version † met : with meteorological data	Details
2025-08-29	0002-4023-1403-01-01-3002 -2025-08-21-1302	The latest version
2024-12-25	0002-4023-1403-01-01-3002 -2025-01-01-0002
2023-06-02	0002-4023-1403-01-01-3002 -2023-06-01-0548	Included in Yearly Fixed Dataset 2024
2022-06-27	0002-4023-1403-01-01-3002 -2022-06-22-1944	Included in Yearly Fixed Dataset 2022
2021-08-13	0002-4023-1403-01-01-3002 -2021-08-11-1347	Included in Yearly Fixed Dataset 2021
2019-09-03	0002-4023-1403-01-01-3002 -2019-09-02-1741	Included in Yearly Fixed Dataset 2020
2018-06-27	0002-4023-1403-01-01-3002 -2018-03-15-1454	Included in Yearly Fixed Dataset 2018