Registration Dossier

Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

With high probability 2,2’,2’’-Nitrilotriethanole is acutely not harmful to fish.

Key value for chemical safety assessment

LC50 for freshwater fish:
11 800 mg/L

Additional information

To determine the toxicity of 2,2’,2’’-nitrilotriethanol to fish, a non-GLP study similar to APHA method using Pimephales promelas and a flow-through procedure was performed by Geiger et al. (1990). The calculated LC50 value after 96 hours in this study was 11800 mg/l related to the nominal concentrations (confirmed by concentration control analytics). Hence, the chemical is considered to be acutely not harmful for fish. Other data which are available for 2,2’,2’’-nitrilotriethanol are disregarded and shout not be used for risk assessment purposes mainly due to the insufficient exposure duration.