Building a model based on scientific consensus for Life Cycle Impact Assessment of Chemicals: the Search for Harmony and Parsimony
Hauschild, Michael Z., Mark Huijbregts, Olivier Jolliet, Matthew Macleod, Manuele D. Margni, Dik van de Meent, Ralph K. Rosenbaum, Thomas E. McKone
Under the UNEP-SETAC Life Cycle Initiative the six most commonly used characterization models for toxic impacts from chemicals were compared and harmonized through a sequence of workshops removing differences which were unintentional or unnecessary. A parsimonious (as simple as possible but as complex as needed) and transparent consensus model, USEtox, was created producing characterization factors that fall within the range of factors from the harmonised existing characterisation models. The USEtox model together with factors for several thousand substances are currently under review to form the basis of the recommendations from the UNEP-SETAC Life Cycle Initiative in this field.
Environmental Science and Technology
Year of Publication
Indoor Environment Group, Sustainable Energy Systems Group, Sustainable Energy Department, Energy Analysis and Environmental Impacts Division