A Weight-of-Evidence Framework for Assessing Sediment (Or Other) Contamination: Improving Certainty in the Decision-Making Process

Burton, G.A.; Batley, Graeme E.; Chapman, Peter M.; Forbes, Valery E.; Smith, Eric P.; Reynoldson, Trefor B.; Schlekat, Christian E.; Besten, P.J. den; Bailer, A. John; Green, Andrew S.; Dwyer, Robert

doi:10.1080/20028091056854

Cited by 97 publications

(53 citation statements)

References 28 publications

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“…Here, it is important to come to a view by weighing the evidence in as systematic and transparent a way as possible. A developing methodology, based on epidemiological experience, now facilitates this (19)(20)(21).…”

Section: Guarding Against Mistakes and Surprisesmentioning

confidence: 99%

Peer Reviewed: Does Ecotoxicology Inform Ecological Risk Assessment?

Calow¹,

Forbes²

2003

Environ. Sci. Technol.

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135

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Section: Guarding Against Mistakes and Surprisesmentioning

confidence: 99%

Peer Reviewed: Does Ecotoxicology Inform Ecological Risk Assessment?

Calow¹,

Forbes²

2003

Environ. Sci. Technol.

Self Cite

135

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“…Such a sound basis for decision-making is particularly important for sites background contamination/effects, variable substrate types and complex contamination patterns, all of which increase the complexity of the analyses and create potential for confounding effects . The tabular decision matrix, a mean to assess sediment quality WOE remains an effective basis (a logic system) for sediment management decision-making (Burton et al 2002a). Tabular decision matrices can reasonably incorporate a limited level of ordinal response, but should emphasize a strong quantitative evaluation within LOE (like statistical summarization) prior to merging into the more qualitative matrix table .…”

Section: Introductionmentioning

confidence: 99%

Ecological risk assessment of sediment management areas: application to Sado Estuary, Portugal

et al. 2009

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The purpose of this work was to integrate different methodologies to assess the potential ecological risk of estuarine sedimentary management areas, using the Sado Estuary in Portugal as case study. To evaluate the environmental risk of sediment contamination, an integrative and innovative approach was used involving assessment of sediment chemistry, sediment toxicity, benthic community structure, human driving forces and pressures and management areas organic load levels. The basis for decisionmaking for overall assessment was a statistical multivariate analysis appended into a score matrix tables, using a best expert judgment. The integrated approach allowed to identify from the 19 management areas analyzed, three with no risk but other three with high risk to cause adverse effects in the biota, related with the contaminants analyzed. The methodologies used showed to be effective as a support for decision making leading to future estuarine management recommendations.

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“…PAHs, however, are described as toxic, and some aromatics are potentially carcinogenic (Long and Morgan 1990). The effects of range-low (ERL) values (Burton et al 2002) were considered in evaluating the possible ecotoxicological risks of PAHs in the study area. The measured concentrations of PAHs were then compared with their ERL levels.…”

Section: Environmental Significancementioning

confidence: 99%

Indicators of terrestrial biogenic hydrocarbon contamination and linear alkyl benzenes as land-base pollution tracers in marine sediments

Syakti

Asia

Kanzari

et al. 2013

Int. J. Environ. Sci. Technol.

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Aliphatics (n-alkanes) and polycyclic aromatic hydrocarbons (PAHs) were measured in surface sediments collected from 12 sampling points (P1-P12) of sewage discharge to the sea from the wastewater treatment plant of Cortiou (France). Total n-alkanes and PAHs concentrations ranged from 34 to 2,155 and 696 to 10,700 lg kg -1 , respectively. Some specific hydrocarbon indexes suggested that terrestrial biogenic inputs are predominant compared to marine sources and that pyrolytic sources derived from wood and biomass combustion contribute to PAHs in the surface sediments. Total linear alkyl benzenes in Cortiou sediments ranged from 42.9 to 502.3 lg kg -1 . Low internal and external (I/E) isomers ratio (P0) suggests that inadequately treated sewage is discharged into the marine environment while some environmental processes might change I/E ratios during transport seaward (P1-P12). The high contaminant levels followed by the cumulative concentration of several compounds may lead to elevated toxicity levels in the sediments.

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A Weight-of-Evidence Framework for Assessing Sediment (Or Other) Contamination: Improving Certainty in the Decision-Making Process

Cited by 97 publications

References 28 publications

Peer Reviewed: Does Ecotoxicology Inform Ecological Risk Assessment?

Peer Reviewed: Does Ecotoxicology Inform Ecological Risk Assessment?

Ecological risk assessment of sediment management areas: application to Sado Estuary, Portugal

Indicators of terrestrial biogenic hydrocarbon contamination and linear alkyl benzenes as land-base pollution tracers in marine sediments

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