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Acute Immobilization Toxicities of Five Pesticides to Daphnia magna Straus

MA De-jun

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Abstract

[Objective] The aim was to compare the acute immobilization toxicities of five pesticides to Daphnia magna Straus.[Method] The EC50 values of five pesticides to D.magna were determined,and then the acute immobilization toxicities of five pesticides to D.magna were evaluated.[Result] The acute immobilization toxicities of five pesticides to D.magna were as follows: 20% fenpropathrin EW(EC50= 0.002 8 a.i.mg/L)10% cyhalothrin WP(EC50= 0.008 9 a.i.mg/L) 7.5% rotenone EC(EC50= 0.189 9 a.i.mg/L) 7.5% pyrethrins EW(EC50= 0.202 0 a.i.mg/L)0.5% physcion AS(EC50= 0.640 1 a.i.mg/L).[Conclusion] The result lays theoretical basis for the application of D.magna in environmental pollution monitoring.

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What this paper is about

[Objective] The aim was to compare the acute immobilization toxicities of five pesticides to Daphnia magna Straus.[Method] The EC50 values of five pesticides to D.magna were determined,and then the acute immobilization toxicities of five pesticides to D.magna were evaluated.[Result] The acute immobilization toxicities of five pesticides to D.magna were as follows: 20% fenpropathrin EW(EC50= 0.002 8 a.i.mg/L)10% cyhalothrin WP(EC50= 0.008 9 a.i.mg/L) 7.5% rotenone EC(EC50= 0.189 9 a.i.mg/L) 7.5% pyrethrins EW(EC50= 0.202 0 a.i.mg/L)0.5% physcion AS(EC50= 0.640 1 a.i.mg/L).[Conclusion] The result lays theoretical basis for the application of D.magna in environmental pollution monitoring.

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Available abstract

[Objective] The aim was to compare the acute immobilization toxicities of five pesticides to Daphnia magna Straus.[Method] The EC50 values of five pesticides to D.magna were determined,and then the acute immobilization toxicities of five pesticides to D.magna were evaluated.[Result] The acute immobilization toxicities of five pesticides to D.magna were as follows: 20% fenpropathrin EW(EC50= 0.002 8 a.i.mg/L)10% cyhalothrin WP(EC50= 0.008 9 a.i.mg/L) 7.5% rotenone EC(EC50= 0.189 9 a.i.mg/L) 7.5% pyrethrins EW(EC50= 0.202 0 a.i.mg/L)0.5% physcion AS(EC50= 0.640 1 a.i.mg/L).[Conclusion] The result lays theoretical basis for the application of D.magna in environmental pollution monitoring.

Key concepts: Daphnia magna, EC50, Pesticide, Rotenone, Acute toxicity, Toxicology, Chemistry, Toxicity

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