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Short-term toxicity to fish

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Description of key information

96h LC50 > 100 mg/l for Oncorhynchus mykiss (Key study) 

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
100 mg/L

Additional information

Data are available for two short-term studies on fish:

The assessment of the 96 h LC50 of FeNaEDTA in fish was done in an acute test on the rainbow trout Onchorhynchus mykiss according to the OECD Guideline 203, EC method C.1 (92/69/EEC) and US EPA OPPTS 850.1075. The test item was evaluated in a static test under GLP (Bormann 2007, KEY study, Reliability 1).

No mortalities of fish occurred up to a concentration of 100 mg/L within a period of 96 h. The mean measured concentration of the test item was between 80 and 120% of the nominal through the entire test period and the toxicological endpoints were evaluated using nominal concentration of the test item. The LC50 (96h) was determined to be > 100 mg/L with a probability of 99.9%. The NOEC (96 h) was determined to be 100 mg/L.

The acute toxicity (96h-LC50) of sodium ferric EDTA towards Pimephales promelas was investigated according to EPA-600/3 -75 -009 and ASTM method E729 -80 in a multispecies test (published paper by Ewel et al, 1986, Reliability 2). The toxicity value was found to be >100 mg/l.

 

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