Practical case for Hungary
The number of the Hungarian emission factors per category is shown in the table below. The main sources of the National database were the National Inventory Report and existing databases like Gabi, DEFRA, ELCD, EPA, COPERT, Ecoinvent, studies of associations of different inputs (e.g. steel), several other studies, scientific articles, e.g.
The main sources of the National database were:
the National Inventory Report,
studies of associations of different inputs (e.g. steel),
several other studies, scientific articles, e.g.
The calculation methods and metadata are listed in EF Database Hungarian Report pdf file.
The National Emission Factor Database was harmonised at project level.
For the Hermann Otto Institute (HOI), the database was the biggest challenge of the project. Even with a clear methodology, finding data by location requires a lot of time. The HOI objective is to improve the database and feed it regularly after the project, despite a lack of financing.
See the practical case for Greece
See the practical case for Italy
See the practical case for Croatia
See the practical case for France
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If you are a policy maker, you can also be interested in explanation about the way to build your own database, here.