A risk management framework for Gentle Remediation Options (GRO)
Artikel i vetenskaplig tidskrift, 2022

Gentle Remediation Options (GRO) are remediation measures involving plants, fungi, bacteria, and soil amendments that can be applied to manage risks at contaminated sites. Several studies and decision-support tools promote the wider range of benefits provided by GRO, but there is still skepticism regarding GRO implementation. Key issues that need to be better communicated are the various risk mitigation mechanisms, the required risk reduction for an envisioned land use, and the time perspective associated with the risk mitigation mechanisms. To increase the viability and acceptance of GRO, the phytomanagement approach implies the combination of GRO with beneficial green land use, gradually reducing risks and restoring ecosystem services. To strengthen the decision basis for GRO implementation in practice, this paper proposes a framework for risk management and communication of GRO applications to support phytomanagement strategies at contaminated sites. The mapping of the risk mitigation mechanisms is done by an extensive literature review and the Swedish national soil guideline value model is used to derive the most relevant human health exposure pathways and ecological risks for generic green land use scenarios. Results indicate that most of the expected risk mitigation mechanisms are supported by literature, but that knowledge gaps still exist. The framework is demonstrated to support the identification of GRO options for the case study site given two envisioned land uses: biofuel park and allotment garden. A more easily understandable risk management framework, as proposed here, is expected to act as a communication tool to educate decision-makers, regulatory bodies and other stakeholders for better understanding of risk mitigation mechanisms and preliminary timeframes of various GRO, particularly in the early stages of a brownfield redevelopment project.

Gentle Remediation Options (GRO)

Ecosystem services

Risk comunication

Phytomanagement

Brownfields

Risk-based land management (RBLM)

Författare

Paul David Drenning

Chalmers, Arkitektur och samhällsbyggnadsteknik, Geologi och geoteknik

COWI AB

Shaswati Chowdhury

Chalmers, Arkitektur och samhällsbyggnadsteknik, Geologi och geoteknik

Yevheniya Volchko

Chalmers, Arkitektur och samhällsbyggnadsteknik, Geologi och geoteknik

Lars Rosen

Chalmers, Arkitektur och samhällsbyggnadsteknik, Geologi och geoteknik

Yvonne Andersson-Sköld

Statens Väg- och Transportforskningsinstitut (VTI)

Chalmers, Arkitektur och samhällsbyggnadsteknik

Jenny Norrman

Chalmers, Arkitektur och samhällsbyggnadsteknik, Geologi och geoteknik

Science of the Total Environment

00489697 (ISSN) 18791026 (eISSN)

Vol. 802 149880

Ökad tillgång till ekosystemtjänster genom innovativ och skonsam efterbehandling (ECO-GRO)

Formas (2018-01467), 2019-01-01 -- 2021-12-31.

Möjligheter att bereda stadsnära förorenad mark för biobaserad produktion

Formas (FR-2017/0007), 2017-01-01 -- 2019-12-31.

Ämneskategorier

Naturresursteknik

Ekologi

Geokemi

Miljövetenskap

DOI

10.1016/j.scitotenv.2021.149880

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Senast uppdaterat

2021-09-13