Bioavailability Assessment of Metals in Freshwater Environments: A Historical Review

Adams, William J.; Blust, Ronny; Dwyer, Robert; Mount, David R.; Nordheim, Eirik; Rodríguez, Patricio; Spry, Doug

doi:10.1002/etc.4558

Cited by 116 publications

(97 citation statements)

References 60 publications

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“…Nevertheless, biological metrics observed in the fields are likely influenced by other abiotic and biotic factors, which may have affected our results. For example, metal toxicity can be complicated by water chemistry affecting metal bioavailability (Adams et al 2020) and the combination of trace metals (Meyer et al 2015). Also, the metal contamination in sediments, particularly if it is not correlated with the contamination in water, may have played an important role in appropriately interpreting the results.…”

Section: Discussionmentioning

confidence: 99%

What to Survey? A Systematic Review of the Choice of Biological Groups in Assessing Ecological Impacts of Metals in Running Waters

Namba

Iwasaki

Heino

et al. 2020

Enviro Toxic and Chemistry

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Which biological groups (in the present study, periphyton, macroinvertebrates, and fishes) are surveyed is a fundamental question in environmental impact assessment programs in metal-contaminated rivers. We performed a systematic review of 202 studies that investigated the ecological impacts of metal contamination on aquatic populations and communities in streams and rivers to examine 1) which biological groups were surveyed, 2) whether their responses were correlated with each other, and 3) which biological group was most responsive to changes in metal contamination level. In these studies, published from 1991 to 2015, benthic macroinvertebrates were most frequently chosen throughout the period (59-76% in different 5-yr periods), followed by periphyton and fishes, and the number of studies that surveyed at least 2 or 3 biological groups was very limited (10%). Pearson's correlation coefficients calculated between the metrics of different biological groups were often low, emphasizing the importance of investigating multiple biological groups to better understand the responses of aquatic communities to metal contamination in running waters. Despite the limited data collected, our meta-analysis showed that, in most cases, biological metrics based on macroinvertebrates were more responsive to changes in metal contamination level than those based on periphyton or fishes. This finding suggests that benthic macroinvertebrates could be a reasonable choice to detect the ecological impacts of metal contamination on a local scale.

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Section: Discussionmentioning

confidence: 99%

What to Survey? A Systematic Review of the Choice of Biological Groups in Assessing Ecological Impacts of Metals in Running Waters

Namba

Iwasaki

Heino

et al. 2020

Enviro Toxic and Chemistry

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“…models and sought to identify best practices in the use of these models for developing and applying bioavailabilitybased criteria, benchmarks, or guidelines for metals that are intended to protect aquatic life (Adams et al 2020;Brix et al 2020;Garman et al 2020;Van Genderen et al 2020).…”

mentioning

confidence: 99%

Metal Bioavailability Models: Current Status, Lessons Learned, Considerations for Regulatory Use, and the Path Forward

Mebane

Chowdhury²,

Schamphelaere

et al. 2019

Enviro Toxic and Chemistry

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Since the early 2000s, biotic ligand models and related constructs have been a dominant paradigm for risk assessment of aqueous metals in the environment. We critically review 1) the evidence for the mechanistic approach underlying metal bioavailability models; 2) considerations for the use and refinement of bioavailability-based toxicity models; 3) considerations for the incorporation of metal bioavailability models into environmental quality standards; and 4) some consensus recommendations for developing or applying metal bioavailability models. We note that models developed to date have been particularly challenged to accurately incorporate pH effects because they are unique with multiple possible mechanisms. As such, we doubt it is ever appropriate to lump algae/plant and animal bioavailability models; however, it is often reasonable to lump bioavailability models for animals, although aquatic insects may be an exception. Other recommendations include that data generated for model development should consider equilibrium conditions in exposure designs, including food items in combined waterborne-dietary matched chronic exposures. Some potentially important toxicity-modifying factors are currently not represented in bioavailability models and have received insufficient attention in toxicity testing. Temperature is probably of foremost importance; phosphate is likely important in plant and algae models. Acclimation may result in predictions that err on the side of protection. Striking a balance between comprehensive, mechanistically sound models and simplified approaches is a challenge. If empirical bioavailability tools such as multiple-linear regression models and look-up tables are employed in criteria, they should always be informed qualitatively and quantitatively by mechanistic models. If bioavailability models are to be used in environmental regulation, ongoing support and availability for use of the models in the public domain are essential.

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“…Cadmium showed the highest values in point 2 only in the dry period, while the copper showed the highest values in point 2 in both periods, while the Zn highest value in point 2 only in the dry period. pH might also affect the concentration of soluble zinc, where high concentrations of this metal are found in well-oxidized conditions (pH 5 to 6.5), whereas low concentrations might be observed in redox conditions (pH 8) ( Adams et al., 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of metal contamination effects in piranhas through biomonitoring and multi biomarkers approach

Montes

Ferreira

Giarrizzo

et al. 2020

Heliyon

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The present field study aimed to assess the water quality of the Itacaiúnas River, located at the eastern part of the Brazilian Amazon, using water's physicochemical parameters, ecological risk assessment in sediments, biomarkers and metal bioaccumulation in piranhas at two points: upstream (P1) and downstream (P2), and the type of season (Dry and Rainy). We revealed a significant difference between the points and the seasons. Concerning, the concentration of metals (Cd, Cu, Zn, Cr, and Hg) in sediment and water, we reported significant concentrations of Cd and Cu especially on P2 at dry season. The fish gills collected in P2 showed various types of damages (moderate and severe), furthermore, the Degree of Tissue Change (DTC) reported a significant difference between points, highlighting the dreadful condition in animals' health originated from this point. In terms of the biotransformation enzyme, the GST activity was higher in fishes from P2 in both seasons. The obtained results showed clear signs of stress in fish from the downstream point. Linear correlation analysis exhibited that the biomarkers' response could be linked to the detected metals bioaccumulation. This field investigation provides baseline data on pollution status in this region and the results showed that although the overall potential ecological risks of the metals were considered low at our sampling sites including cadmium, however, Cd posed a noteworthy monomial potential ecological risk factor. Strong evidence of correlation was obtained between Cd in the environment with the gills' damage in fishes from P2. The results also indicated that S. rhombeus could be useful for biomonitoring species for assessing metal contamination.

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Bioavailability Assessment of Metals in Freshwater Environments: A Historical Review

Cited by 116 publications

References 60 publications

What to Survey? A Systematic Review of the Choice of Biological Groups in Assessing Ecological Impacts of Metals in Running Waters

What to Survey? A Systematic Review of the Choice of Biological Groups in Assessing Ecological Impacts of Metals in Running Waters

Metal Bioavailability Models: Current Status, Lessons Learned, Considerations for Regulatory Use, and the Path Forward

Evaluation of metal contamination effects in piranhas through biomonitoring and multi biomarkers approach

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