Acute Toxicity of Diisopropylmethyl Phosphonate and Dicyclopentadiene to Aquatic Organisms.

Abstract

The acute toxicity of diisopropylmethyl phosphonate (DIMP) and dicyclopentadiene (DCPD) was studied utilizing aquatic organisms representing several trophic levels in an aquatic ecosystem. DCPD was found to be approximately 10X more toxic than DIMP. The eggs and 7-day old fry of the fathead minnow were the life stages least susceptible to DCPD and DIMP, respectively. Increasing hardness and pH 8.0 appeared to decrease slightly the toxicity of DIMP while the toxicity of DCPD was not significantly altered by varying water quality parameters. Generally, aging of solutions had little affect on toxicity of DCPD. A 50% decrease in toxicity to bluegill was observed for DIMP solutions allowed to age for 96 hours. Essentially no bioconcentration (<1X) was observed for bluegill continually exposed to C(14) DIMP, and the estimated maximum bioconcentration factor for C(14) DCPD was 53X.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1976
Accession Number
ADA037750

Entities

People

  • Bevier H. Sleight Iii
  • Gerald A. Leblanc
  • Robert E. Bently
  • Terry A. Hollister

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Animals
  • Aquatic Organisms
  • Bioassay
  • Cells
  • Chemical Compounds
  • Confidence Limits
  • Ecology
  • Environmental Protection
  • Eutrophication
  • Fish
  • Habitats
  • Materials
  • Medical Personnel
  • Regression Analysis
  • Statistical Analysis
  • Toxicity
  • Water Quality

Fields of Study

  • Environmental science

Readers

  • Aquatic Ecology
  • Environmental Remediation and Restoration.
  • Mathematics or Statistics