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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

14 d and 96 h LC50 250 mg active acid/l, O. mykiss, reliability 1 (ABC 1979, read-across from EDTMP acid)
14 d and 96 h NOEC 114 mg active acid/l, O. mykiss, reliability 1 (ABC 1979, read-across from EDTMP acid)
96 h LC50 1600 mg active acid/L, C. variegatus, reliability 2 (EG&G 1976, read-across from EDTMP acid)

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
250 mg/L

Marine water fish

Marine water fish
Effect concentration:
1 600 mg/L

Additional information

No data are available with the registered substance, however reliable data are available with the parent substance EDTMP acid (CAS 1429-50-1). A 14 d and 96 h LC50 value of 250 mg active acid/l and a NOEC value of 114 mg/l have been determined for the effects of EDTMP acid on the mortality of the freshwater fish O. mykiss based on mean measured concentrations.

A 96 h LC50 value of 8000 µl/l (ppm), equivalent to 1600 mg active acid/L has been reported for the effects of EDTMP acid on the mortality of the marine fish C. variegatus.