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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

The critical study is considered to be the 21-day study of Tong et al. (1996), which reports a NOEC of 0.5 mg/L.

Key value for chemical safety assessment

EC10, LC10 or NOEC for freshwater invertebrates:
0.5 mg/L

Additional information

Tong et al. (1996) carried out a 14-day and a 21-day chronic toxicity study in Daphnia magna using the OECD 1987 Testing Guidelines with daily renewal of test solutions but without measurement of acrylonitrile. They reported that the results of the two studies were identical, with a NOEC for survival of 2 mg/L nominal (LOEC > 4 mg/L) and a NOEC for reproduction of 0.5 mg/L nominal. This study is reported by the EU RAR (2004) to be the critical study.