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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Description of key information

In a closed system under long-term exposure, a NOEC(21d) of 5.6 mg/L for Daphnia magna was determined for 1-chlorobutane.

Key value for chemical safety assessment

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

Additional information

The key study for long-term toxicity 1-chlorobutane to daphnids was conducted according to OECD 211 under semi-static conditions (Ministry of the Environment Japan 1995). The study was conducted in a closed system without substance loss in the concentration range of nominally 1.8 to 180 mg/L and a NOEC(21d) of 5.6 mg/L was determined based on reproduction (mean number of offspring).