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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

Key value for chemical safety assessment

LC50 for freshwater fish:
2.39 mg/L

Additional information

The acute toxicity of ITTFEP (purity 82.3%) to rainbow trout, Oncorhynchus mykiss was determined in a semi-static test with a test solution exchange every 24 hours (Maetzler, 2001). The test was performed according to OECD 203, EU Method C.1 and the EPA OPP 72-1. Control (0), 1.3, 2.2, 3.6, 6.0 and 10 mg test item/L, mean measured: control, 0.9, 1.7, 2.4, 4.8 and 8.4 mg test item/L, corresponding to mean measured Control, 0.74, 1.4, 1.98, 3.95, and 6.91 mg ITTFEP/L. During the study, the temperature of the test solutions ranged from 13.0 to 13.6°C. After 96 hours of exposure, 0, 0, 0, 1, 7, and 7 out of 7 fish had died in the mean measured Control, 0.74, 1.4, 1.98, 3.95, and 6.91 mg ITTFEP/L treatment groups. The 96 h LC50 was determined to be 2.39 mg ITTFEP /L. The concentrations were based on mean measured concentrations. The test was performed with technical product of ITTFEP. This study was performed according to international guidelines and under GLP. Therefore, this study was considered to be Klimisch 1 study. The obtained results are considered as relevant for the risk assessment.