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Ascl Jun 26, 2019 11:16 AM
I am using EMEP emission database for my research and have some questions about the units for some substances.
For dioxins and furans (PCDD/F), the emission factors (EF) from the EMEP/EEA guidebook are mostly in g I-TEQ / output for all sectors (for example 1.A.1.a). But the EF is for example in g/Mg oil burned for the sector "venting and flaring" (1.B.2.c). When searching the official reports, all emissions appear to be in Gg. If I take the example of the sector 1A1a, are the emissions really reported in Gg (as in the database) or in Gg I-TEQ (as in the EF recommended by the guidebook)? How are reports aggregated at national level if the reports from the individual sectors are compiled in different units?
I have the same question for PCBs, where the EF is in ng WHO-TEG/GJ for the sector 1A1a but in ug/Mg metal for the production of iron and steel. Official reports still appear in Gg when downloading them from Webdab...

Thank you for your help.
Replies (2)
EEA Jul 08, 2019 09:08 AM
Dear M. 'Ascl',

Thank you for contacting the European Environment Agency (EEA).
Your enquiry has been forwarded to our relevant experts. We will get back to you as soon as possible.

Thank you for your patience.

With kind regards,
EEA Enquiry Service
EEA Jul 23, 2019 04:56 PM
Dear M. 'Ascl',

Thank for your question and our apology for the late feedback.
In order to harmonise emission unit within an emission inventory a process of mass unit conversion need to be performed ahead of the reporting. In addition, where relevant, information related to energy factor have to be taken into account by using supporting tools, as for example the one provided by the IEA: https://www.iea.org/statistics/resources/unitconverter/

We hope you find this information useful.

With kind regards,
EEA Enquiry Service