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A gravity-flow column to provide pesticide-laden water for aquatic bioassays

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Conclusions

Concentrations of mirex among individual tanks in each test were not statistically different at the 5-percent significance level; whereas, differences in mirex concentrations in tank water among experiments were significant. Paired comparisons indicated statistical differences between the first and second, and the second and third experiments, but not between the first and third experiment. These differences in mean mirex concentrations in tank water may have been caused by seasonal variations in water temperature. Fluctuations in the mirex concentrations within individual tanks were not significant.

In its present state of development, the described gravityflow column is being utilized in seasonal tests to deliver mirexladen water to determine toxicity and uptake of mirex by several animal species in an artificial estuarine ecosystem.

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References

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Authors and Affiliations

  1. Gulf Breeze Environmental Research Laboratory, U.S. Environmental Protection Agency, Sabine Island, 32561, Gulf Breeze, Fla.

    Patrick W. Borthwick, Marlin E. Tagatz & Jerrold Forester

  2. Associate Laboratory of the National Environmental Research Center, Corvallis, Ore.

    Patrick W. Borthwick, Marlin E. Tagatz & Jerrold Forester

Authors
  1. Patrick W. Borthwick
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  2. Marlin E. Tagatz
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  3. Jerrold Forester
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Borthwick, P.W., Tagatz, M.E. & Forester, J. A gravity-flow column to provide pesticide-laden water for aquatic bioassays. Bull. Environ. Contam. Toxicol. 13, 183–187 (1975). https://doi.org/10.1007/BF01721735

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  • DOI: https://doi.org/10.1007/BF01721735

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