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| Content Provider | Springer Nature Link |
|---|---|
| Author | Lesage, Pascal Ekvall, Tomas Deschênes, Louise Samson, Réjean |
| Copyright Year | 2007 |
| Abstract | The principal aim of this paper is to evaluate the environmental attributes and consequences of a ‘rehabilitation for residential redevelopment’ scenario. It is contrasted to a non-intensive and low-cost ‘exposure minimization’ scenario, assumed to be the default intervention option to obtain compliance. This paper also aims to (1) quantitatively evaluate the relative environmental significance of primary, secondary and tertiary impacts, and (2) to compare conclusions obtained from attributional and from consequential LCA of the same decision.An attributional LCA (ALCA) and a consequential LCA (CLCA) are used to compare the two radically different intervention options. The rehabilitation for residential redevelopment scenario involves ‘dig and dump’ remediation, infrastructure material recycling and site backfilling. The ‘exposure minimization’ scenario consists in covering the site with clean soil and subsequently idling the site. The functional unit allowing this comparison is the ‘legal and appropriate intervention on 1 ha of the tracked brownfield’. The inventory analyses are done following the proposals in Part 1. The LCIA is done using IMPACT 2002+ method.The ALCA results show no clear preference for either intervention option because of the trade-off between the benefits of decontamination and the impacts of the rehabilitation service system. The CLCA, on the other hand, unequivocally supports rehabilitation if it is followed by residential reuse, as long as the development of suburban sites is avoided. In these cases, tertiary environmental benefits dominate other types of impacts. It is concluded that, when brownfield intervention decisions can affect the fate of the site, the scope of brownfield management LCA should always be expanded to account for tertiary impacts.The methodology proposed was restricted to a single site and to residential redevelopment. It is suggested that the general approach could be used for other types of brownfield redevelopments and for decisions affecting multiple brownfields. |
| Starting Page | 497 |
| Ending Page | 513 |
| Page Count | 17 |
| File Format | |
| ISSN | 09483349 |
| Journal | The International Journal of Life Cycle Assessment |
| Volume Number | 12 |
| Issue Number | 7 |
| e-ISSN | 16147502 |
| Language | English |
| Publisher | Ecomed |
| Publisher Date | 2006-10-29 |
| Publisher Place | Landsberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Attributional LCA (ALCA) Brownfield Brownfield rehabilitation consequential LCA (CLCA) contaminated site remediation open-loop recycling Environment Environmental Economics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Science |
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