EPNB - Expert Panel on Nitrogen Budgets

The Expert Panel on Nitrogen Budgets (EPNB) provides expert guidance to the Task Force on Reactive Nitrogen in providing mass-consistent information of the fate of nitrogen in the environment. It was initiated at the first meeting of the Task Force in Wageningen, Netherlands, in June 2008 as an ad-hoc expert panel. Between 2008 and 2017, 15 meetings of the EPNB have been organized, many of which coinciding with regular task force meetings. EPNB-16 was held in Berlin, in combination with an international workshop on the "German Nitrogen Budget" under the DESTINO project, kindly hosted by the German Environment Agency UBA (May 2-3, 2019)

EPNB prepared the “Guidance Document on National Nitrogen Budgets”. The document was presented and approved at the 31st meeting of the Executive Body of the Convention on Long-Range Transboundary Air Pollution. The document can be downloaded from here. There is also a French and a Russian version available.

The detailed provisions of creating N budgets for six out of eight pools defined in the GD (and a general overview on definitions and principles) have now been provided by EPNB. These Annexes to the GD are now available for public review. Please download and use the annexes provided as one file here (~7 MB file size). This file version includes all comments received by September 21, 2016. Additional feedback especially on topics that appear during use of these documents will continue to be highly valued even after full adoption. Please download and fill in the review sheet for your feedback, and send it by e-mail to the EPNB co-chairs (Wilfried Winiwarter, winiwarter(at)iiasa.ac.at, and Markus Geupel, markus.geupel(at)uba.de).

NEW (September 17, 2019): The "Energy" Annex has been compiled, reviewed and reviewer comments integrated. It is available for download and waiting for adoption at the next EPNB meeting. Feedback and especially user comments will be highly appreciated, please use the review sheet as above for that purpose.

We will continue posting constructive suggestions along with the guiding material, before improvements are taken up by EPNB and integrated in updated Annexes.

The upcoming meeting (EPNB-17) will be organized in Brussels, October 2, 2019, under the next regular TFRN meeting (TFRN-14). Please note that the European Commission and TFRN are co-hosting a Workshop on "Integrated sustainable nitrogen management” immediately before. Venue will be the Bedford Hotel & Congress Centre, Rue du Midi 135, Brussels.

Draft agenda (October 2, 9.30 - 13.00)

  • Guidance document and annexes: Energy Annex (Jürg Heldstab)
  • Further procedure: Waste Annex (Markus/Wilfried)
  • Final results German N budget (Markus)
  • National N target Germany (Jürg)
  • Other national applications (national experts)
  • INMS: An international framework for national budgets (Wilfried)
  • Application at different scales: regional (Gabi Wechsung)
  • Application at different scales: urban nitrogen cycles – UNCNET (Wilfried)
  • Work plan 2019/20
  • AOB

Results from this workshop will again be posted on this web site.

EPNB sends updates on their activities in an e-mail newsletter, in addition to material posted here. If you wish to become involved, please contact the co-chairs via e-mail. Information on past and current activities, e.g. the minutes of all previous EPNB meetings are also available from this site.