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Tissue-based environmental quality benchmarks and standards.

James P Meador¹, Michael St J Warne, Peter M Chapman

¹NOAA Fisheries, Northwest Fisheries Science Center, Ecotoxicology and Environmental Fish Health Program, 2725 Montlake Blvd. East, Seattle, WA, 98112, USA, james.meador@noaa.gov.

Environmental Science and Pollution Research International

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Summary

This summary is machine-generated.

Tissue-based environmental quality standards (EQS) offer advantages for aquatic toxicity assessment. This study explores the benefits and drawbacks of using tissue concentrations for water quality management and ecological risk assessment.

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Area of Science:

Environmental Toxicology
Aquatic Ecology
Chemical Risk Assessment

Background:

Tissue concentrations (residues) are increasingly recognized for characterizing chemical toxicity in aquatic organisms.
However, tissue-based metrics are underutilized in water quality management and lack formal adoption as environmental quality standards (EQS).

Purpose of the Study:

To synthesize the advantages and disadvantages of developing and applying tissue-based EQS.
To evaluate tissue-based EQS as an alternative or supplement to traditional exposure-based EQS using water and sediment data.

Main Methods:

Development of tissue-based EQS alongside conventional toxicity testing.
Quantification of chemical concentrations in organism tissues.
Integration of tissue-residue toxicity metrics into risk assessment frameworks.

Main Results:

Tissue-based EQS can be readily developed and applied.
Tissue-residue toxicity metrics serve as benchmarks for water and sediment quality screening.
These metrics aid in deriving equivalent water/sediment EQS and support ecological risk assessments.

Conclusions:

Tissue-based toxicity metrics and associated EQS present significant advantages for aquatic ecosystem assessment.
Limitations and knowledge gaps require further research for comprehensive application.
Tissue-based EQS offer a valuable tool for enhanced water quality management and ecological protection.