Conducting Ecological Risk Assessments of Inorganic Metals and Metalloids: Current Status

Chapman, Peter M.; Wang, Fei; Janssen, Colin R.; Goulet, Richard R.; Kamunde, Collins

doi:10.1080/713610004

Cited by 143 publications

(85 citation statements)

References 368 publications

(290 reference statements)

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“…However, such assumptions ignore the ecological relationships among community populations. The toxic effects on ecosystems at the community-level have been found to be determined by the inherent sensitivities of the species present and the ecological relationships between these species (Chapman et al, 2003;Fleeger et al, 2003;Laender et al, 2008). Therefore, the ecological interactions within communities should be considered during ecological effect assessments to provide accurate estimations of the effects of pollutants (Laender et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

A method linking the toxic effects at community-level with contaminant concentrations

Wang

Zhang

et al. 2016

Science of The Total Environment

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• We tested petroleum hydrocarbon ecotoxicological effects on a simplified community.• Concentration-response relationships at a community-level were constructed.• A deduced no-effect concentration representing ecological interaction was named TCPE.• TCPE of petroleum hydrocarbons was higher than PNEC calculated from SSD.• Ecological interactions reduce toxic effect of petroleum hydrocarbons on a community. In this study, we developed a method to quantify and link the toxic effects in community-level ecosystems with concentrations of petroleum hydrocarbons. The densities of Platymonas helgolandica var. tsingtaoensis, Isochrysis galbana, and Brachionus plicatilis in single-species tests and customized ecosystems were examined in response to a concentration gradient of petroleum hydrocarbons ranging from 0 to 8.0 mg L −1 . A three-population ecological model with interspecies competition-grazing relationships was used to characterize population sizes with concentrations of petroleum hydrocarbons. A threshold concentration of the simplified plankton ecosystem of 0.376 mg L −1 for petroleum hydrocarbons was calculated from the proposed model, which was higher than the no-effect concentration of 0.056 mg L −1 derived from the single-species toxicity tests and the predicted no-effect concentration of 0.076 mg L −1 calculated from the species sensitivity distribution. This finding indicates that interspecies competition and grazing reduced the toxic effect of petroleum hydrocarbons at the community level. The sensitivity analysis for model parameters demonstrates that plankton population biomasses are highly sensitive to filtration rates. Antagonism between interspecies interactions and petroleum hydrocarbon toxicity was attributed to the reduced filtration rate and zooplankton grazing pressure. The proposed method is a simple G R A P H I C

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Section: Introductionmentioning

confidence: 99%

A method linking the toxic effects at community-level with contaminant concentrations

Wang

Zhang

et al. 2016

Science of The Total Environment

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“…Furthermore, similar proteins sequestrate and remove metal ions from metabolic pathways. This is necessary because excessive amounts of such ions (mainly derived from food, Chapman et al, 2003) can have adverse effects on organisms. Different metal cation detoxification systems have therefore been developed in organisms (Viarengo and Nott, 1993).…”

Section: Chemical Composition Of the Insoluble Organic Matrixmentioning

confidence: 99%

Effect of organic matrices on the determination of the trace element chemistry (Mg, Sr, Mg/Ca, Sr/Ca) of aragonitic bivalve shells (<i>Arctica islandica</i>)—Comparison of ICP-OES and LA-ICP-MS data

Schöne¹,

Zhang²,

Jacob³

et al. 2010

Geochem. J.

109

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The element chemistry of biogenic carbonates can provide important data on past environments. However, the Sr/Ca and Mg/Ca ratios as well as the Mg and Sr concentrations of biological carbonates, especially aragonitic bivalves often depart from apparent thermodynamic equilibrium. When measured in situ by means of LA-ICP-MS, the Mg concentration is often substantially enriched (two-to threefold) near the organic-rich, annual growth lines. To test the hypothesis that some organic components exert a major influence on the skeletal metal content, the element chemistry of different shell components (insoluble organic matrix, IOM; dissolved CaCO 3 and soluble organics, SOM) of Arctica islandica was measured by means of ICP-OES and LA-ICP-MS. The ICP-OES data indicate that the IOM is strongly enriched in Mg (130 ppm) and depleted in Sr and Ca (10 ppm and 0.22 wt%, respectively) when compared to the whole biomineral (Mg: 68 to 99 ppm, Sr: 860 to 1,060 ppm, Ca: ~35.72 wt%). Although the average relative abundance of the IOM barely exceeds 0.46 wt%, its chemical composition in combination with its heterogeneous distribution across the shell can significantly increase estimates of the Mg concentration if measured in situ by LA-ICP-MS. Depending on the distribution of the IOM, the Ca concentration may be significantly lower locally than the average Ca concentration of the whole shell (35.72 wt%). If this remains undetected, the Mg concentration of shell portions with higher than average IOM content is overestimated by LA-ICP-MS and, conversely, the Mg concentration is underestimated in shell portions with lower than average IOM content. Removal of the IOM prior to the chemical analysis by LA-ICP-MS or mathematical correction for the IOMderived magnesium concentrations is therefore strongly advised. The different chemistry of the IOM may also exert a major control on the trace element to calcium ratios. Shell portions enriched in IOM will show up to 200 times higher Mg/ Ca and up to two times higher Sr/Ca ratios than the average shell of A. islandica. Without removal of the IOM prior to the analysis, Mg/Ca and Sr/Ca ratios of shell portions with higher IOM content cannot be used as paleothermometers. Because it is currently impossible to remove the IOM prior to chemical analyses by LA-ICP-MS, we recommend the use of wet chemical techniques (= possibility to separate and measure individual shell components) such as ICP-OES at the expense of lower sampling resolution. The results of this study will significantly improve our understanding of shellbased climate and environmental proxies.

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“…Limitations for laboratory-to-field extrapolation Use of standardized media and experimental conditions Differences in element speciation, toxicity, and bioavailability not taken into account (1-10 ) Unrealistic ligand-to-element ratios prevent better knowledge of complexation capacity of natural organic matter (11,12 ) Ecological traits and life history of organisms not taken into account (10,(13)(14)(15) Addition of contaminant to test media Spiking with inorganic salts fails to mimic contamination in the field and alters results of ecotoxicological tests (16,17 ) Sampling and standard laboratory procedures…”

Section: Issuementioning

confidence: 99%

Laboratory-to-Field Extrapolation in Aquatic Sciences

Vignati¹,

Ferrari²,

Dominik³

2007

Environ. Sci. Technol.

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Viewpoint ▼ hand, (interdisciplinary) field investigations have high environmental relevance but often fail to establish precise cause-effect relationships among different variables. With regard to the benefits and limitations of these two approaches in ecotoxicology, Cairns (6) recently wrote: "The degree to which ecotoxicology remains primarily a laboratory-based profession, becomes primarily a field-based profession, or becomes a . . . combination of the two will depend on how satisfactorily predictions made with laboratory-generated evidence can be validated in natural systems." e R econciling laboratory and field observations remains a major challenge for both fundamental and applied research in aquatic sciences (1-6). Laboratory-based, mechanistic investigations are the ideal tool to establish causal links between selected master variables and chemical or biological responses, such as contaminant speciation and toxicity. Yet, the environmental significance of these investigations can be questioned because they are generally carried out under standardized conditions, which are very different from natural field settings. On the other Laboratory-to-Field EXTRAPOLATION in Aquatic SciencesConceptual frameworks are needed to narrow the gap between laboratory-and field-based research.

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Conducting Ecological Risk Assessments of Inorganic Metals and Metalloids: Current Status

Cited by 143 publications

References 368 publications

A method linking the toxic effects at community-level with contaminant concentrations

A method linking the toxic effects at community-level with contaminant concentrations

Effect of organic matrices on the determination of the trace element chemistry (Mg, Sr, Mg/Ca, Sr/Ca) of aragonitic bivalve shells (<i>Arctica islandica</i>)—Comparison of ICP-OES and LA-ICP-MS data

Laboratory-to-Field Extrapolation in Aquatic Sciences

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Conducting Ecological Risk Assessments of Inorganic Metals and Metalloids: Current Status

Cited by 143 publications

References 368 publications

A method linking the toxic effects at community-level with contaminant concentrations

A method linking the toxic effects at community-level with contaminant concentrations

Effect of organic matrices on the determination of the trace element chemistry (Mg, Sr, Mg/Ca, Sr/Ca) of aragonitic bivalve shells (<i>Arctica islandica</i>)&mdash;Comparison of ICP-OES and LA-ICP-MS data

Laboratory-to-Field Extrapolation in Aquatic Sciences

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Effect of organic matrices on the determination of the trace element chemistry (Mg, Sr, Mg/Ca, Sr/Ca) of aragonitic bivalve shells (<i>Arctica islandica</i>)—Comparison of ICP-OES and LA-ICP-MS data