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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Link to relevant study record(s)

Description of key information

EC50 (48 h) = 7.3 mg/L for Daphnia magna (EPA-660/3-75-009)

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
7.3 mg/L

Additional information

One study investigating the acute toxicity of Zinc O,O,O',O'-tetrabutyl bis(phosphorodithioate) on aquatic invertebrates is available (Forbis, 1983). The study was conducted according to EPA guideline (EPA-660/3-75-009) under static conditions with acetone as solubilizer using Daphnia magna as test organism. After 48 hours of exposure the EC50 value for the immobilization of test organisms was 7.3 mg/L (nominal).