Acute and sub-lethal toxicity of three POEA surfactant formulations to Daphnia magna

John M. Brausch; Blake Beall; Philip N. Smith

doi:10.1007/s00128-007-9091-0

Acute and sub-lethal toxicity of three POEA surfactant formulations to Daphnia magna

John M. Brausch, Blake Beall, Philip N. Smith

Environmental Toxicology

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

Polyethoxylated tallowamine (POEA) is a non-ionic surfactant used in many herbicide formulations to increase the ability of active ingredients to penetrate leaf cuticles. However, it has also been shown to disrupt respiratory membranes in aquatic organisms. In this study, Daphnia magna was used to examine the lethal and sub-lethal toxicity of three POEA formulations consisting of 5:1, 10:1, and 15:1 average oxide:tallowamine. The formulation consisting of 10:1 was the most acutely toxic with a 48-h LC50 value of 97.0 μg/L and 15:1 was least toxic at 849.4 μg/L. All formulations inhibited growth at concentrations between 100 and 500 μg/L.

Original language	English
Pages (from-to)	510-514
Number of pages	5
Journal	Bulletin of Environmental Contamination and Toxicology
Volume	78
Issue number	6
DOIs	https://doi.org/10.1007/s00128-007-9091-0
State	Published - Jun 2007

Keywords

Daphnia magna
POEA
Surfactants

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abstract = "Polyethoxylated tallowamine (POEA) is a non-ionic surfactant used in many herbicide formulations to increase the ability of active ingredients to penetrate leaf cuticles. However, it has also been shown to disrupt respiratory membranes in aquatic organisms. In this study, Daphnia magna was used to examine the lethal and sub-lethal toxicity of three POEA formulations consisting of 5:1, 10:1, and 15:1 average oxide:tallowamine. The formulation consisting of 10:1 was the most acutely toxic with a 48-h LC50 value of 97.0 μg/L and 15:1 was least toxic at 849.4 μg/L. All formulations inhibited growth at concentrations between 100 and 500 μg/L.",

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AB - Polyethoxylated tallowamine (POEA) is a non-ionic surfactant used in many herbicide formulations to increase the ability of active ingredients to penetrate leaf cuticles. However, it has also been shown to disrupt respiratory membranes in aquatic organisms. In this study, Daphnia magna was used to examine the lethal and sub-lethal toxicity of three POEA formulations consisting of 5:1, 10:1, and 15:1 average oxide:tallowamine. The formulation consisting of 10:1 was the most acutely toxic with a 48-h LC50 value of 97.0 μg/L and 15:1 was least toxic at 849.4 μg/L. All formulations inhibited growth at concentrations between 100 and 500 μg/L.

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KW - Surfactants

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Acute and sub-lethal toxicity of three POEA surfactant formulations to Daphnia magna

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Keywords

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