Hauschild, Michael Zwicky

Potting, José

The code of practice of the Society of Environmental Toxicology and Chemistry and the recent international standards and technical reports from ISO are widely accepted as general frameworks for Life Cycle Assessment (LCA) but they are not detailed methodological references, since international agreement is limited to main lines and methodology has not yet been fully developed. A major problem to be solved is the poor accordance between impact as calculated in LCA and the expected occurrence of actual impact. Until recently, Life Cycle Impact Assessment (LCIA) typically focused on substance properties and left out information about the location of the emission and characteristics of – transport to – the receiving environment. Thus LCIA ignored those fate and exposure characteristics which were specified according to the conditions at the relevant locations. Here lies a source of discrepancy between modelled impact and the occurrence of actual impact. This technical report aims to contribute to a solution of the poor accuracy of the assessed impact in typical LCA resulting from the present disregard of spatial information in LCA

Background for spatial differentiation in life cycle impact assessment. The EDIP2003 methodology

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