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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

A GLP-compliant OECD Guideline 202 study with Daphnia magna is available for Terpineol multi (a multi-constituent substance with alpha-Terpineol as its main constituent and gamma-Terpineol as the minor constituent). Daphnids (20/dose) were exposed to nominal concentrations of 40, 48, 58, 69, 83 and 100 mg/L Terpineol multi under static conditions for 48 hours. The 69 and 100 mg/L test concentrations were analytically verified at t=0 and t=48 -h. At t=0 about 70% of nominal was detected. Concentrations remained constant throughout the test. From a concentration of 48 mg/L immobilisation was noted in 3/20 daphnids which increased to 15/20 animals at the highest concentration tested. Based on these findings the 48-h EC50 value is 73 mg/L (based on nominal concentrations).

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
73 mg/L

Additional information

The results of Terpineol multi can be used for alpha-Terpineol because the read-across candidate Terpineol multi(a multi-constituent substance with alpha-Terpineol as its main constituent and gamma-Terpineol as the minor constituent). The minor constituent is gamma-Terpineol is thought to have similar ecotoxicity because it has a very similar chemical structure and also belongs to the neutral organics (See IUCLID section 7.1 for constituents).

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