Effect of pH on the persistence and toxicity of cyfluthrin to Chironomus tentans

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The effect of pH upon the aquatic toxicity of cyfluthrin was determined in 48 h static acute toxicity tests using 2nd instar Chironomus tentans larvae. Tests were conducted in both dechlorinated tap water and lake water of pH 8.0, 7.2, and 6.6. After 48 h, immobilized and dead larvae were removed and replaced with 2nd instar larvae to assess the persistence of toxicity. Midges were cultured in water adjusted to the pH values used in testing.

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Hambleton, Faith Ann (Faith Ann Elizabeth) May 1992.

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The effect of pH upon the aquatic toxicity of cyfluthrin was determined in 48 h static acute toxicity tests using 2nd instar Chironomus tentans larvae. Tests were conducted in both dechlorinated tap water and lake water of pH 8.0, 7.2, and 6.6. After 48 h, immobilized and dead larvae were removed and replaced with 2nd instar larvae to assess the persistence of toxicity. Midges were cultured in water adjusted to the pH values used in testing.

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  • May 1992

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  • Nov. 15, 2016, 10:54 a.m.

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  • Aug. 3, 2017, 4:54 p.m.

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Hambleton, Faith Ann (Faith Ann Elizabeth). Effect of pH on the persistence and toxicity of cyfluthrin to Chironomus tentans, thesis or dissertation, May 1992; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc935772/: accessed October 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .