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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

With high probability epsilon-Caprolactam is acutely not harmful to aquatic invertebrates.

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
1 000 mg/L

Additional information

As for the fish, the key study on aquatic invertebrates was performed at the Mitsubishi Chemical Saftey Institute Ltd, Japan on behalf of the Ministry of Environment, Gouvernment of Japan. It is a static GLP study according to OECD guideline 202 on Daphnia magna resulting in an EC50 (48h) >1000 mg/l. This result is supporte by a BASF-study (1988) according to EPA guideline EG-1 with an EC50 (48h) >500 mg/l which indicates a low hazard potential of epsilon-Caprolactam to aquatic invertebrates.