NDLI: Allocation of environmental burdens in co-product systems: Product-related burdens (Part 1)

Content Provider	Springer Nature Link
Author	Azapagic, Adisa Clift, Roland
Copyright Year	1999
Abstract	This paper uses an industrial case study of a boron system producing five co-products to examine different allocation methods recommended by ISO 14041 and compare them with the allocation methods most commonly used by LCA practitioners. In particular, allocation by physical causality is discussed. The paper illustrates how the use of whole system modelling can help to identify the correct type of causality for allocation. The case examined here concerns marginal changes of product-related parameters in the system, in this case represented by the output of boron co-products. The analysis shows that in some cases it can he correct to allocate the burdens on the basis of a simple physical quantity, such as mass, as long as the allocation parameter is based on physical causation and is not chosen arbitrarily. In whole system modelling, the correct causality is identified by the model itself, so that the possibility of allocation by an arbitrary parameter is avoided. However, as for system disaggregation and expansion, allocation through mathematical modelling may only be possible if detailed data for the system are available.
Starting Page	357
Ending Page	369
Page Count	13
File Format	PDF
ISSN	09483349
Journal	The International Journal of Life Cycle Assessment
Volume Number	4
Issue Number	6
e-ISSN	16147502
Language	English
Publisher	Ecomed
Publisher Date	1999-01-01
Publisher Place	Landsberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Allocation boron environmental impacts LCA Life Cycle Assessment linear programming marginal values system analysis Environment Environmental Economics
Content Type	Text
Resource Type	Article
Subject	Environmental Science

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