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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

LC50 (96 h) > 100 mg/L (nominal, corresponding to > 95.2 mg/L measured (TWA)) for Oryzias latipes (OECD 203)

Key value for chemical safety assessment

LC50 for freshwater fish:
100 mg/L

Additional information

One short-term study with rice fish (Oryzias latipes) from 2007 is available (2007-0320-FGO). The study was conducted according to GLP-standard and the Japanese Circular on Test Methods of New Chemical Substances, equivalent to OECD guideline 203. Based on analytically verified test concentrations under semi-static conditions, the LC50 (96 h) for rice fish was observed to be greater than 100 mg/L (nominal, corresponding to 95.2 mg/L, measured (TWA)) which was the highest concentration tested. However, the cumulative mortality after 96 h amounted to 40% at the highest test concentration while there occurred no mortality at concentrations below 100 mg/L. Additionally, behavioural abnormalities like reduced swimming and abnormal swimming (surfacing) are reported for 32 mg/L at 96 h and for all time points at 100 mg/L.