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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

The test results for acute toxicity of L-arginine to daphnia magna were:

EC50 = 1.8 g/l; EC100 = 5.6 g/l; NOEC (mobility) was estimated to be 1.0 g/l and NOEC (condition) was estimated to be < 1.0 g/l.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
1.8 g/L

Additional information

A limit test according to OECD 202 did not show any adverse effects to Daphnia magna at a test concentration of 1 g/l L-arginine.

A subsequent test with L-arginine according to OECD 202 with higher test concentrations showed the following results:

EC50 = 1.8 g/l; EC100 = 5.6 g/l; NOEC (mobility) was estimated to be 1.0 g/l and NOEC (condition) was estimated to be < 1.0 g/l.