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Assessing costs and benefits of improved soil quality management in remediation projects: A study of an urban site contaminated with PAH and metals.
Department of Architecture and Civil Engineering, Chalmers University of Technology.
Swedish Geotechnical Institute, Department of Soil and Environment, Swedish University of Agricultural Sciences.
Swedish Geotechnical Institute.
Swedish Geotechnical Institute.
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2020 (English)In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 707, article id 135582Article in journal (Refereed) Epub ahead of print
Abstract [en]

Contaminants in the soil may threaten soil functions (SFs) and, in turn, hinder the delivery of ecosystem services (ES). A framework for ecological risk assessments (ERAs) within the APPLICERA - APPLICable site-specific Environmental Risk Assessment research project promotes assessments that consider other soil quality parameters than only contaminant concentrations. The developed framework is: (i) able to differentiate the effects of contamination on SFs from the effects of other soil qualities essential for soil biota; and (ii) provides a robust basis for improved soil quality management in remediation projects. This study evaluates the socio-economic consequences of remediation alternatives stemming from a Tier 1 ERA that focusses on total contaminant concentrations and soil quality standards and a detailed, site-specific Tier 3 Triad approach that is based on the APPLICERA framework. The present study demonstrates how Tier 1 and Tier 3 ERAs differ in terms of the socio-economic consequences of their remediation actions, as well as presents a novel method for the semi-quantitative assessment of on-site ES. Although the presented Tier 3 ERA is more expensive and time-consuming than the more traditional Tier 1 ERA approach, it has the potential to lower the costs of remediation actions, decrease greenhouse gas emissions, reduce other environmental impacts, and minimise socio-economic losses. Furthermore, the remediation actions stemming from the Tier 3 ERA were predicted to exert far less negative ES effects than the actions proposed based on the results of the Tier 1 ERA.

Place, publisher, year, edition, pages
2020. Vol. 707, article id 135582
Keywords [en]
Contaminated sites, Cost-benefit analysis, Ecological risk assessment, Ecosystem services, Remediation, Soil quality
National Category
Natural Sciences
Research subject
Biologi med ekologisk inriktning
Identifiers
URN: urn:nbn:se:oru:diva-79362DOI: 10.1016/j.scitotenv.2019.135582PubMedID: 31776003OAI: oai:DiVA.org:oru-79362DiVA, id: diva2:1391194
Funder
Swedish Research Council Formas, 210-2014-87Available from: 2020-02-03 Created: 2020-02-03 Last updated: 2020-02-03

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