Operational integration of time dependent toxicity impact category in dynamic LCA

The Science of the Total Environment
Allan Hayato ShimakoAras Ahmadi

Abstract

Life Cycle Assessment (LCA) is the most widely used method for the environmental evaluation of an anthropogenic system and its capabilities no longer need to be proved. However, several limitations have been pointed out by LCA scholars, including the lack of a temporal dimension. The objective of this study is to develop a dynamic approach for calculating the time dependent impacts of human toxicity and ecotoxicity within LCA. A new framework is proposed, which includes dynamic inventory and dynamic impact assessment. This study focuses on the dynamic fate model for substances in the environment, combined with the USEtox® model for toxicity assessment. The method takes into account the noisy and random nature of substance emissions in function of time, as in the real world, and uses a robust solver for the dynamic fate model resolution. No characterization factors are calculated. Instead, a current toxicity is calculated as a function of time i.e. the damage produced per unit of time, together with a time dependent cumulated toxicity, i.e. the total damage produced from time zero to a given time horizon. The latter can be compared with the results obtained by the conventional USEtox® method: their results converge for a very la...Continue Reading

Citations

Nov 11, 2017·Integrated Environmental Assessment and Management·Lisa WinterMatthias Finkbeiner
Sep 5, 2018·Environmental Toxicology and Chemistry·Peter FantkeMichael Hauschild
Dec 13, 2018·Environmental Health Perspectives·Peter FantkeThomas E McKone
Apr 30, 2020·Environmental Science and Pollution Research International·Kexuan YangZuoming Zhou
Sep 11, 2019·The International Journal of Life Cycle Assessment·Charlotte PradinaudRalph K Rosenbaum
Aug 8, 2020·The Science of the Total Environment·Didier Beloin-Saint-PierrePierre Collet
Jun 23, 2018·The Science of the Total Environment·Allan Hayato ShimakoMathieu Spérandio

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