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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Link to relevant study record(s)

Description of key information

Daphnia (21 day) NOEC 25 mg/L Na2H2EDTA corresponding to 20.5 mg/L H3HEDTA.

Key value for chemical safety assessment

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

Additional information

There are no available studies on HEDTA. The substance is likely to show low long-term toxicity to aquatic invertebrates based on read-across to available studies on EDTA. A 21-day study of toxicity of Na2H2EDTA on Daphnia magna in a reproduction test indicated a NOEC of 25 mg/L.