Normalisation

A separate project has been carried out to develop normalisation factors for the ReCiPe impact assessment method. The results have been published as an article in Science of the Total Environment (see reference below).

Revisions

In September 2010, some of the normalisation factors have been revised, resulting in ‘LCA ReCiPe midpoint normalisation 2000, version 1.1’. In this document, the following revisions have been implemented:

  • A note has been added to the values of the ammonia emission totals to air, to indicate more clearly that these emission totals exclude emissions from animal manure and fertiliser, and to give an indication of the values of these additional (indirect) ammonia emissions.
  • An error in the emission value of benzene to air has been corrected. This had a limited influence on the normalisation factors for ozone formation respiratory effects and human toxicity, and a negligible influence on normalisation factors for other toxicity-related impact categories.
  • An error in the emission value of dioxin and dioxin-like compounds to fresh water has been corrected. This has a large influence on the normalisation factors for human toxicity, and a negligible influence for other toxicity-related impact categories.
  • The emission of chlorine to fresh water has been removed. This choice has been made because the emission value was on the one hand marked by a high grade of uncertainty, while on the other hand, it turned out to have a decisive influence on the normalisation factors for freshwater ecotoxicity, and a (very) large influence on the normalisation factors for marine ecotoxicity and human toxicity. Large changes have thus occurred in these normalisation factors, due to the removal of chlorine. In future normalisation studies, the collection of reliable emission factors for chlorine and chlorine compounds to the freshwater compartment needs attention.

The revised factors are included in an Excel file, which can be downloaded by clicking here

Updates

With every update of the ReCiPe method, the normalisation factors are recalculated using the Europe and World reference inventories in SimaPro


Reference

Wegener Sleeswijk, A (1,2), Van Oers, LFCM (3), Guinée, JB (3), Struijs, J (4), Huijbregts, MAJ (2). Normalisation in product life cycle assessment: An LCA of the global and European economic systems in the year 2000. Science of the Total Environment, 2008, 390 (1): 227-240. http://dx.doi.org/10.1016/j.scitotenv.2007.09.040

  1. GLOBRIGHT, Reitzstraat 7, 2332 XV Leiden, The Netherlands
  2. Radboud University, Faculty of Science, Department of Environmental Science, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
  3. Institute of Environmental Sciences (CML), Leiden University, P.O. Box 9518, 2300 RA Leiden, The Netherlands
  4. National Institute for Public Health and the Environment – Laboratory for Ecological Risk Assessment (RIVM-LER), P.O. Box 1, 3720 BA Bilthoven, The Netherlands

 

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