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Short-Term Methods For Estimating Chronic Toxicity Of Effluents And Receiving Waters To West Coast Marine And Estuarine Organisms (First Edition).pdf

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Preview of Short-Term Methods for Estimating Chronic Toxicity of Effluents and Receiving Waters to West Coast Marine and Estuarine Organisms (First Edition)
🔗 Source: waterboards.ca.gov
📊 Size: 2.62 MB
👤 Author: kadams
⬇️ Downloads: 69

Summary

Summary:

This 1995 document, edited by G.A. Chapman, D.L. Denton, and J.M. Lazorchak, provides standardized whole effluent toxicity (WET) test methods for assessing the chronic toxicity of effluents and receiving waters to west coast marine and estuarine organisms. Developed by the U.S. Environmental Protection Agency (EPA) and state programs, these methods are designed for use in the National Pollutant Discharge Elimination System (NPDES) program and other EPA monitoring activities.

Key Points:

1. Purpose: To detect and control chronically toxic effluents, aligning with the Clean Water Act's goal of prohibiting toxic substance discharges in toxic amounts.

2. Scope: Covers test methods for various species currently specified in NPDES permits across west coast states, with potential revisions based on public comments.

3. Method Development: Based on extensive efforts by California Marine Bioassay Project (MBP), EPA West Coast Marine Complex Effluent Program, and Protocol Review Committee (PRC) for the Triennial Review of marine toxicity test protocols.

4. Test Species: Includes abalone (Haliotis rufescens), topsmelt (Atherinops affinis), giant kelp (Macrocystis pyrifera), mysid (Holmesimysis costata), purple sea urchin (Strongylocentrotus purpuratus), and sand dollar (Dendraster excentricus).

5. Validation and Precision: Natural seawater and HSB prepared from natural seawater have been used instead of synthetic dilution water, with mixed results for synthetic waters. The kelp (Laminaria saccharina) test required further experience due to variability in precision.

6. Exclusions: Methods for Mysidopsis intii and Laminaria saccharina were excluded due to redundancy or insufficient precision.

Significance:

These methods contribute to the monitoring and regulation of water quality, ensuring the protection of west coast marine ecosystems from toxic discharges.

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Description

It offers guidelines and verification of data analysis techniques for environmental protection assessments.

Technical Information

  • File Format: PDF
  • File Size: 2.62 MB
  • Pages: 673
  • Language: EN
  • Author: kadams
  • Total Downloads: 69
  • Last Updated: 17 hours ago

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Short-Term guideShort-Term tutorialMethods guideMethods tutorialEstimating guideEstimating tutorialChronic guideChronic tutorialToxicity guideToxicity tutorialEffluents guideEffluents tutorialReceiving guideReceiving tutorialWaters guideWaters tutorialWest guideWest tutorialCoast guideCoast tutorialMarine guideMarine tutorialEstuarine guideEstuarine tutorialOrganisms guideOrganisms tutorial(First guide(First tutorialEdition) guideEdition) tutorial

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