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Updated: Jun 10, 2026

Laboratory Estimation of Net Trophic Transfer Efficiencies of PCB Congeners to Lake Trout (Salvelinus namaycush) from Its Prey
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Polybrominated diphenyl ethers concentrations in fish processing plant effluent.

Benoit A Lalonde1, William Ernst

  • 1Environment Canada, Water Science and Technology Directorate, Dartmouth, Canada. Benoit.lalonde@ec.gc.ca

Bulletin of Environmental Contamination and Toxicology
|July 24, 2010
PubMed
Summary

Wastewater from fish plants shows high levels of polybrominated diphenyl ethers (PBDEs), exceeding ambient surface water concentrations. Daily PBDE discharge from these plants is significant, with notable amounts found in solid effluent, particularly in cod and herring.

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Area of Science:

  • Environmental Chemistry
  • Ecotoxicology
  • Marine Biology

Background:

  • Polybrominated diphenyl ethers (PBDEs) are flame retardants with known environmental persistence.
  • Wastewater from industrial processes can be a significant source of chemical pollutants.
  • Limited data exists on PBDE concentrations specifically from fish processing plant effluents.

Purpose of the Study:

  • To quantify PBDE concentrations in wastewater effluent from fish processing plants.
  • To assess the daily discharge of PBDEs into the environment from these sources.
  • To determine PBDE levels in the solid fraction of the effluent for different fish species.

Main Methods:

  • Analysis of PBDEs in liquid wastewater samples.
  • Calculation of daily PBDE discharge based on effluent concentrations.

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  • Quantification of PBDEs in solid effluent fractions from various seafood types.

    • Main Results:

    • PBDE concentrations in fish plant wastewater (82–35,055 pg/L) were higher than North American surface water levels (6–158 pg/L).
    • Daily PBDE discharge ranged from 0.03 to 13.34 g/day.
    • PBDE concentrations in solid effluent varied widely, from 0.78 ng/g (scallop) to 3,505 ng/g (cod), with herring at 1,534 ng/g.

    Conclusions:

    • Fish processing plants are a substantial source of PBDE pollution.
    • PBDEs accumulate in the solid waste of fish processing, posing a risk to benthic environments.
    • Effective wastewater treatment and waste management are crucial to mitigate PBDE release from the seafood industry.