A systematic review of risk assessment tools for contaminated sites – Current perspectives and future prospects

Mahammedi, Charf; Mahdjoubi, Lamine; Booth, Colin A.; Akram, Hina; Butt, Talib E.

doi:10.1016/j.envres.2020.110180

Cited by 19 publications

(10 citation statements)

References 18 publications

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“…The framework development started from an idea based on the literature review that there is a strong need for a framework that will enable assessors in conducting preliminary risk assessment (Mahammedi et al, 2020b). The components of the framework were determined from a critical review of the literature.…”

Section: Framework Development and Discussionmentioning

confidence: 99%

“…There are a plethora of challenges facing developers and other stakeholders in conducting preliminary assessment of brownfield sites (Mahammedi et al, 2020a(Mahammedi et al, , 2020bButt et al, 2020). Amongst the difficulties facing brownfield site assessors is the very strict protocols and standards adopted for risk assessment of such sites.…”

Section: Introductionmentioning

confidence: 99%

“…In fact, limited research adopting VAHP in the redevelopment of brownfield sites. Despite significant advances in risk assessment of brownfield sites, the scope has been characterised by a lack of a comprehensive, robust and sound frameworks to assist in the identification of hazardous substances, pollutants, or contaminants, as well as guide research in this field (Mahammedi et al, 2020b;Mahammedi, 2021). Laidler et al (2002) stressed that the lack of robust frameworks contributed to delays in the planning process and a reluctance of some governments to redevelop brownfield sites.…”

Section: Introductionmentioning

confidence: 99%

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Framework for preliminary risk assessment of brownfield sites

Mahammedi

Mahdjoubi

Booth

et al. 2022

Science of The Total Environment

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Section: Framework Development and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Framework for preliminary risk assessment of brownfield sites

Mahammedi

Mahdjoubi

Booth

et al. 2022

Science of The Total Environment

Self Cite

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“…Risk assessment examines the human health and environmental impacts of a project and is a widely used method to determine the need for remediation. Mahammedi et al (2020) examined RA tools used in different countries and that are tailored for specific types of risk and situations. However, the authors found that many of these were lacking in key respects, such as user-friendliness and ability to accurately assess some risks.…”

Section: Nanobioremediationmentioning

confidence: 99%

Bioremediation of contaminated soil and groundwater by in situ biostimulation

Romantschuk,

Lahti-Leikas,

Kontro

et al. 2023

Front. Microbiol.

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Bioremediation by in situ biostimulation is an attractive alternative to excavation of contaminated soil. Many in situ remediation methods have been tested with some success; however, due to highly variable results in realistic field conditions, they have not been implemented as widely as they might deserve. To ensure success, methods should be validated under site-analogous conditions before full scale use, which requires expertise and local knowledge by the implementers. The focus here is on indigenous microbial degraders and evaluation of their performance. Identifying and removing biodegradation bottlenecks for degradation of organic pollutants is essential. Limiting factors commonly include: lack of oxygen or alternative electron acceptors, low temperature, and lack of essential nutrients. Additional factors: the bioavailability of the contaminating compound, pH, distribution of the contaminant, and soil structure and moisture, and in some cases, lack of degradation potential which may be amended with bioaugmentation. Methods to remove these bottlenecks are discussed. Implementers should also be prepared to combine methods or use them in sequence. Chemical/physical means may be used to enhance biostimulation. The review also suggests tools for assessing sustainability, life cycle assessment, and risk assessment. To help entrepreneurs, decision makers, and methods developers in the future, we suggest founding a database for otherwise seldom reported unsuccessful interventions, as well as the potential for artificial intelligence (AI) to assist in site evaluation and decision-making.

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“…Inadequate site assessment may expose investigation personnel, and the general public, to unnecessary and unacceptable risks. These can even lead to more extensive or intractable contamination problems than those that previously existed on a site (Harris and Herbert 1994;Mahammedi et al 2020b). Land acquisition without appropriate investigation can result in the developer incurring financial and legal liabilities.…”

Section: Introductionmentioning

confidence: 99%

Criteria for Preliminary Risk Assessment of Brownfield Site: An International Survey of Experts

Mahammedi

Mahdjoubi

Booth

et al. 2022

Environmental Management

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Comprehensive risk assessment of brownfield sites requires a broad range of knowledge and multi-disciplinary expertise. Whilst the identification of criteria requirements for preliminary risk assessment has received some attention, there appears to be no studies that have specifically examined professional perspectives relating to these requirements. Yet, variations in professional practitioners’ assessments may have significant consequences for the assessment of risks, and how the criteria are imparted to stakeholders. This study aims to identify the criteria requirements for preliminary risk assessment, using the pollutant linkage model (Source–Pathway–Receptor), and explores cross-disciplinary professional perspectives related to these requirements. To this end, this study commenced with a systematic review to identify various criteria streams required for the preliminary risk assessment of brownfield sites. Thereafter, a questionnaire survey was design and shared with brownfield site professionals. Quantitative analysis of the survey responses (n = 76) reveals disciplines have markedly different priorities relating to the same hazard. For instance, geophysicists, geochemists, and hydrologists do not raise concerns regarding ground movement that can result from the removal of storage and tanks, whilst the same hazard was considered as having a high importance by other professions (such as geologists and geotechnical engineers). This example, amongst others revealed in the study, underpins potential issues and implications for various stakeholders compiling and/or using preliminary risk assessment criteria. This study clarifies both the key criteria requirements for the preliminary risk assessment of brownfield sites, as well as the importance of recognising how variation in professionals’ perceptions plays in the risk assessment process. Although, specialist knowledge is essential for brownfield site investigation, so is the maintaining a broad-based view of other experts coming from different backgrounds, as this renders holistic risk assessment insights.

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A systematic review of risk assessment tools for contaminated sites – Current perspectives and future prospects

Cited by 19 publications

References 18 publications

Framework for preliminary risk assessment of brownfield sites

Framework for preliminary risk assessment of brownfield sites

Bioremediation of contaminated soil and groundwater by in situ biostimulation

Criteria for Preliminary Risk Assessment of Brownfield Site: An International Survey of Experts

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