See the data version history.
The data of old versions are not available at WDCGG.

Updated Date	Version * : the latest version	GAW ID	Station/Mobile	Gas Species † met : with meteorological data	Platform	Sampling Type	Buffer	Organization	Details
2023-10-03	0037-6042-4001-01-01-9999 -2023-04-21-1514*	CMN	Monte Cimone	H2	surface	insitu	data1	ISAC (National Research Council, Institute of Atmospheric Sciences and Climate)	click
2021-08-10	0037-6042-4001-01-01-9999 -2021-08-06-1427	CMN	Monte Cimone	H2	surface	insitu	data1	ISAC (National Research Council, Institute of Atmospheric Sciences and Climate)
2021-06-25	0037-6042-4001-01-01-9999 -2021-06-21-1409	CMN	Monte Cimone	H2	surface	insitu	data1	ISAC (National Research Council, Institute of Atmospheric Sciences and Climate)
2021-05-31	0037-6042-4001-01-01-9999 -2021-05-29-1434	CMN	Monte Cimone	H2	surface	insitu	data1	ISAC (National Research Council, Institute of Atmospheric Sciences and Climate)
2019-03-08	0037-6042-4001-01-01-9999 -2019-03-07-2014	CMN	Monte Cimone	H2	surface	insitu	data1	ISAC (National Research Council, Institute of Atmospheric Sciences and Climate)
2018-06-13	0037-6042-4001-01-01-9999 -2018-03-01-1548	CMN	Monte Cimone	H2	surface	insitu	data1	ISAC (National Research Council, Institute of Atmospheric Sciences and Climate)