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6th SETAC-Europe Meeting: LCA - Selected Papers
Fate Coefficients for the Toxicity Assessment of Air Pollutants
Olivier Jolliet; Pierre Crettaz
Corresponding author:: Pierre Crettaz, Swiss Federal Institute of Technology, Institute of Soil and Water Mangement, CH-1015 Lausanne, Switzerland
The inclusion of fate and exposure is a central issue in Life Cycle Impact Assessment (LCIA). According to the framework developed by the Society of Environmental Toxicity and Chemistry (SETAC), fate and exposure route are included through a fate coefficient which makes the link between an emission and the related increase in concentration.
In the Critical surface-time 95 methodology factors of air pollutants are determined empirically at a world level as the ratio of measured concentration to the total estimated emission flow. Based on a detailed study performed for seventeen pollutants, a correlation is developed to predict fate factors from the residence time. Variation of a factor 10000 are observed for the fate coefficient. Empirical fate factors are compared to modelled fate factors and are found to have a similar order of magnitude.
| | Keywords: dilution, air pollutants; exposure, air pollutants; fate factors of air pollutants, empirical approach; LCIA; Life Cycle Impact Assessment; residence time, air pollutants; toxicity assessment, air pollutants; air pollutants, fate coefficients |
2 LCA (2) 104-110 (1997)
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