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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

Terpinyl acetate multi has an 96-h LC50 of >11 mg/L based on read across from Teripnyl acetate alpha, which was tested in an OECD TG 203 with an obtained 96-h LC50 of >11 mg/L.

Key value for chemical safety assessment

LC50 for freshwater fish:
11 mg/L

Additional information

No data is available for Terpinyl acetate multi. Therefore read-across is performed to the close structural analogue Terpinyl acetate alpha. The read across justification and documentation is presented in the Aquatic Toxicity Endpoint summary.

A short-term fish toxicity study is available for Terpinyl Acetate alpha. The study is GLP-compliant and in accordance with OECD guideline 203. Fish (Pimephales promelas; 20/dose) were exposed to nominal concentrations ranging from 1.2 to 18 mg/L under flow-through conditions with 0.1 mL/L dimethylformamide as solvent for 96 hours. The test concentrations were analytically verified being 61 to 92% of nominal concentrations. The percentage mortality in the 11 mg/L treatment group at test termination was 45%. No mortality was observed at all other test concentrations, including the control and solvent control. In the 5.9 mg/L treatment group lethargic fish, fish surfacing and fish with loss of equilibrium were seen. Signs of toxicity observed among fish in the 11 mg/L treatment group were lethargy and loss of equilibrium.Test conditions were maintained constant throughout the test, the dissolved oxygen concentration has been at least 70% of the air saturation value throughout the test. The 96-h LC50 value based on mean measured concentrations is >11 mg/L.