6-IE-4-Feb-08-web

6-IE-4-Feb-08-web - Goal and scope definition Inventory...

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Industrial Ecology – Winter 2008 – Session 6 – February 4 Goal and scope definition Inventory analysis Impact Impact assessment assessment Interpretation
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Industrial Ecology – Winter 2008 – Session 6 – February 4 Life Cycle Inventories (LCIs) by themselves do not characterize the environmental performance of a product system. Impact Assessment (IA) Impact Assessment (IA) aims at connecting, to the extent possible, emissions and extractions listed in LCIs on the basis of impact pathways to their potential environmental damages. Impact Assessment Impact Assessment is aimed at understanding and evaluating the magnitude and significance of the potential environmental impacts of a product system (ISO14040). Life Cycle Inventory results Impact categories Category indicator results Environmental profile Valuation One-dimensional environmental score Normalization Characterization Classification Life Cycle Impact Assessment
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Industrial Ecology – Winter 2008 – Session 6 – February 4 Mandatory elements Selection of impact categories, category indicators and characterization models Assignment of LCI results to impact categories (classification) Calculation of category indicator results (characterization) Category indicator results (LCIA profile) Category indicator results (LCIA profile) Optional elements Normalization of category indicator results relative to reference information Grouping Weighting Data quality analysis Elements of LCIA according to ISO 14044 Elements of LCIA according to ISO 14044
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Industrial Ecology – Winter 2008 – Session 6 – February 4 SO emissions Acid rain Acidified lake Dead fish Loss of biodiversity Increase in uncertainty for predicting the environmental impact from the initial interventions Increase in effectiveness of communication of results (generally) Source Midpoint Endpoint Impact pathways consist of linked environmental processes linked environmental processes , and they express the causal chain of subsequent effects originating from an emission or extraction (environmental intervention). Examples: CFC emissions Tropospheric OD Stratospheric OD UVB exposure Human health Impact Assessment Impact Assessment The environmental mechanism (impact pathway) The environmental mechanism (impact pathway)
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This note was uploaded on 08/06/2008 for the course ESM 282 taught by Professor Geyer during the Spring '08 term at UCSB.

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6-IE-4-Feb-08-web - Goal and scope definition Inventory...

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