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Global Journal of Environmental Science and Technology 2011, 1: 21
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Research Article
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Development of LCA characterization factors for terrestrial eutrophication at regional scale
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Alejandro Gallegoa, Luis Rodríguezb, Almudena Hospidoa, María Teresa Moreiraa, Gumersindo Feijooa
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a Department of Chemical Engineering, School of Engineering, Avd. Lope Gómez de Marzo s/n, 15782, Santiago de Compostela, Spain
b European Commission, Directorate General JRC, Institute for Environment and Sustainability, TP 280, Via E. Fermi 1, I-21020 Ispra (VA), Italy
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Abstract |
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Available models for terrestrial eutrophication in Life Cycle Assessment (LCA) only allow estimation on a country scale, being this a problem, especially in large countries with high geographical, climatic and economical variability. This work aims to estimate characterization factors for terrestrial eutrophication at a regional scale, using Galicia (NW Spain) as a case study. Accumulated exceedance (AE) was used as the category indicator and real values of deposition, emissions and critical loads were required. The results obtained confirm that AE is a suitable category indicator for estimation of terrestrial eutrophication. Being stable and suitable for LCA applications, the characterization factors obtained for variations in emissions inferior to 100 tons were selected as general characterization factors. Results were compared with available values for Spain and found to be lower, although further analysis is required in order to calculate the exact value of the uncertainties associated with each characterization factor.
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Keywords |
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Accumulated exceedance; Life cycle impact assessment; Normalization; Site dependent characterization factors; Terrestrial eutrophication
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