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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

2EHDPP is a  “poorly soluble” substance with tendency to stay undissolved when its concentration exceed the water solubility value. Effects observed in the presence of undissolved test material are not indicative of true toxicity but rather indicates physical effects. 

Key value for chemical safety assessment

Additional information

The available studies on the short-term fish toxicity of 2EHDPP are listed in the table below:

ACUTE STUDIES

 

 

 

 

Fish   

Result

Comment

Reference

Flag and Klimish score

Rainbow trout

Salmo gairdneri

96-h LC50: 15 mg/L

Effects only observed at concentrations >solubility

Griffen et al. (1979a)

Supporting-K3

Rainbow trout

Salmo gairdneri

96-h LC50 = 1.3 mg/L

Effects only observed at concentrations ≥solubility

Sousa et al. (1978a)

Supporting-K3

Fathead minnow

Pimephales promelas 

96-h LC50: 14 mg/L

Effects only observed at concentrations >solubility

Griffen et al. (1979b)

Supporting-K3

Fathead minnow

Pimephales promelas 

96-h LC-50: 6.7 mg/L

Effects only observed at concentrations ≥solubility

Sousa et al. (1978b)

Supporting-K3