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Chlorophenols in the terrestrial environment

J Jensen1

  • 1Department of Terrestrial Ecology, Danish National Environmental Research Institute, Silkeborg, Denmark.

Reviews of Environmental Contamination and Toxicology
|January 1, 1996
PubMed
Summary
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Chlorophenols are widespread environmental contaminants found in food chains. While use is restricted, reducing discharge from sources like sewage sludge is crucial due to persistence and toxicity.

Area of Science:

  • Environmental Science
  • Toxicology
  • Ecotoxicology

Background:

  • Chlorophenols are pervasive environmental contaminants found globally, impacting both aquatic and terrestrial ecosystems.
  • These compounds have been utilized for over 50 years in domestic, agricultural, and industrial applications.
  • Sources include industrial use, paper production (wood pulp bleaching), and water chlorination.

Purpose of the Study:

  • To review the environmental presence and sources of chlorophenols.
  • To assess the current environmental impact and future trends of chlorophenol contamination.
  • To highlight the importance of managing specific chlorophenol discharges.

Main Methods:

  • Literature review of environmental monitoring data.
  • Analysis of industrial and domestic chlorophenol sources.

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  • Assessment of regulatory impacts on chlorophenol usage and release.

    • Main Results:

    • Chlorophenols are detected in remote environments and food chains.
    • While widespread use is declining due to restrictions, they persist.
    • Pentachlorophenol is particularly persistent and toxic.

    Conclusions:

    • Chlorophenols, despite reduced usage, remain an environmental concern due to persistence and toxicity.
    • Continued monitoring and reduction of discharges, especially from sewage sludge and pulp mills, are necessary.
    • Future reductions in phenoxy acid herbicides will further decrease environmental chlorophenol levels.