Predictive abilities of numerical sediment quality guidelines in Sydney Harbour, Australia, and vicinity

McCready, S.; Birch, G.F.; Long, Edward R.; Spyrakis, G.; Greely, C. R.

doi:10.1016/j.envint.2006.02.004

Cited by 46 publications

(10 citation statements)

References 21 publications

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“…The SQGs have been derived with a variety of both theoretical methods that rely upon equilibrium partitioning models and empirical methods that rely upon analyses of matching, field-collected chemistry, and biological effects data (McCready et al 2006). Examples of this include the effects range-low (ERL), effects-range median (ERM), threshold effects level (TEL), and probable effects level (PEL) ).…”

Section: Introductionmentioning

confidence: 99%

Mobility and ecological risk assessment of heavy metals in surface sediments of Xiamen Bay and its adjacent areas, China

Yan

Xian

et al. 2009

Environ Earth Sci

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Xiamen Bay (XMB) has received substantial loadings of pollutants from industrial and municipal wastewater discharged since the 1980s. To assess ecological risks and the current spatial changes of metal contaminants in bottom surface sediments, 12 samples were collected. Samples were subjected to a total digestion technique and analyzed by ICP-OES for Cu, Pb, Zn, Cr, and Cd, and by AFS for Hg and As. Among these metals, Zn had the highest values (68-268 mg kg -1 ), followed by Pb (27-71 mg kg -1 ), and lower concentrations were found for Cd (42-1,913 lg kg -1 ) and Hg (0-442 lg kg -1 ). In comparison with the average crustal abundance values, the results indicated that nearly half of the sediment samples of XMB and its adjacent areas were contaminated by Cd, Pb, Zn, and As. Furthermore, based on the modified BCR sequential extraction procedure, the chemical speciation of heavy metals (Cd, Cr, Cu, Pb, Zn, Hg, and As) in selected sediment samples were evaluated in this study. Data from BCR sequential extractions indicated that Cd posed a medium ecological risk, whereas, Cr posed low risk since its exchangeable and carbonate fractions were below 4%, and the mobility of heavy metals in XMB decreased in the order Cd [ Pb [ Cu [ Zn [ Hg [ As [ Cr. By applying mean effects range median quotients (mERMQ), the results showed that Yuandang Lagoon with mERMQ value [0.5 would be expected to have the greatest potential toxic risk in amphipod within XMB and its adjacent areas.Keywords Xiamen Bay Á Surface sediment Á Heavy metals Á Risk assessment code (RAC) Á Mean effects range median quotients (mERMQ) Á Yuandang Lagoon

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Section: Introductionmentioning

confidence: 99%

Mobility and ecological risk assessment of heavy metals in surface sediments of Xiamen Bay and its adjacent areas, China

Yan

Xian

et al. 2009

Environ Earth Sci

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“…Invariably, sample sizes decreased as the degree of chemical contamination increased. In contrast, the results of a study designed specifically to test predictive abilities of SQGs was reported for Sydney Harbor, Australia (McCready et al 2006). Analyses of tests of 106 samples showed that the incidence of toxicity in laboratory tests was very low in samples with mERMq less than 0.1 (i.e., 0% with amphipods alone and 11% in any 1 of 4 tests).…”

Section: Comparisons With Previous Evaluations Of Toxicitymentioning

confidence: 99%

Revision of sediment quality triad indicators in Puget Sound (Washington, USA): I. a Sediment Chemistry Index and targets for mixtures of toxicants

Long

Dutch

Partridge

et al. 2012

Integr Envir Assess & Manag

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The Washington State Department of Ecology annually conducts sediment quality monitoring in Puget Sound as a component of the Puget Sound Ecosystem Monitoring Program. Sediment samples are analyzed to determine the concentrations of about 170 chemical and physical variables. A Sediment Chemistry Index (SCI) was derived using the State of Washington Sediment Management Standards to account for the presence and concentrations of mixtures of toxicants. Mean Sediment Quality Standard quotients (mSQSq) were calculated as the basis for the SCI and compared to the incidence and degree of toxicity in laboratory tests and to metrics of the diversity and abundance of resident benthic assemblages in a database consisting of as many as 664 samples. These data were evaluated with co-occurrence analyses to identify ''cut points'' (i.e., thresholds) in the index below which the frequency and magnitude of biological effects were relatively low and above which they occurred with increasing frequency or magnitude. Iterative trials of different sets of cut points established the final cut points in mSQSq of 0.1, 0.3, and 0.5. They defined 4 ranges in chemical exposure: Minimum (<0

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“…The exhaustive review by Long et al (2006), in addition to providing an overview of the method and its principal advantages, assumptions, and limitations, uses several marine case studies to highlight the concentration-response relationships derived by the mSQG method. Several studies have compiled and analyzed considerable amounts of data, reporting that both the incidence and magnitude of toxicity in laboratory tests or benthic community impairments, or both, generally increase incrementally as mSQGq values increase Fairey et al 2001;Ingersoll et al 2005;Word et al 2005;Long et al 2006;McCready et al 2006). When comparing the incidence of toxicity over ranges of mSQGq values, evaluation of several data sets showed that the incidence of effects in acute laboratory tests was generally low (i.e., 10% or less) in sediments with mSQG values less than 0.1, increased to about 50% as mSQGq values increased to 1.0 or greater, and was greater than 75% when mSQGq values were greater than 1.5.…”

Section: Recent Approaches Of Sqgsmentioning

confidence: 99%

Sediment quality assessment and dredged material management in Spain: Part I, application of sediment quality guidelines in the bay of Santander

Alvarez‐Guerra

Viguri

Casado-Martínez

et al. 2007

Integr Envir Assess & Manag

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Sediments are an essential component of aquatic ecosystems that must be assessed and managed properly. The use of quantitative environmental quality standards derived from consideration of sediment quality guidelines (SQGs) can be effective as part of a tiered risk assessment approach. In Part I of this 2-part paper addressing sediment quality assessment and dredged material management in Spain, different SQG methods are used to evaluate sediment quality in the Bay of Santander, located in the Cantabric Sea along the northern coast of Spain, and to guide development of empirically derived SQGs for marine sediments. The results of the study indicate a great heterogeneity of SQGs, both with regard to the numeric values for a particular chemical and the number of substances for which SQGs have been derived. The analysis highlights the scarce development of empirical SQGs for priority substances identified in current European Union water policy. Nonetheless, the application of SQGs makes it possible to classify different zones of sediment quality in the Bay of Santander. Part II of this 2-part paper considers the environmental impacts of dredged material disposal. Legislation and criteria used to regulate dredged material disposal at sea in different European countries are reviewed, and action levels derived by different countries were used to evaluate management of dredged sediments from Cádiz Bay, located on the South Atlantic coast of Spain.

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Predictive abilities of numerical sediment quality guidelines in Sydney Harbour, Australia, and vicinity

Cited by 46 publications

References 21 publications

Mobility and ecological risk assessment of heavy metals in surface sediments of Xiamen Bay and its adjacent areas, China

Mobility and ecological risk assessment of heavy metals in surface sediments of Xiamen Bay and its adjacent areas, China

Revision of sediment quality triad indicators in Puget Sound (Washington, USA): I. a Sediment Chemistry Index and targets for mixtures of toxicants

Sediment quality assessment and dredged material management in Spain: Part I, application of sediment quality guidelines in the bay of Santander

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