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Aquatic toxicity

The available reliable ecotoxicity results selected for the effect of the test substance on aquatic organisms are all based on dissolved test item concentrations at test start. The table below presents an overview of the reliable toxicity data:

Trophic level

Species

Parameter

Endpoint

Value
(mg/L)

Reference

Acute toxicity, freshwater

Fish

Danio rerio

toxicity

96-h LC50

2.64

Scheerbaum, D., 2009

Invertebrates

Daphnia magna

mobility

48-h EC50

0.56

Noack, M., 2011

Algae

Desmodesmus subspicatus

growth rate

72-h EC50

1.03

Scheerbaum, D., 2011

Chronic toxicity, freshwater 

Algae

Desmodesmus subspicatus

growth rate

72 -h EC10

0.56

Scheerbaum, D., 2011

 

Reliable short-term toxicity data for freshwater organisms are available for three trophic levels: fish, aquatic invertebrates and algae. The lowest acute effect value is the 48-h EC50of 0.56 mg/L observed for the effect of the test item on immobilisation of Daphnia magna.

 

Reliable long-term toxicity data for freshwater organisms are available for one trophic level: algae. The lowest chronic effect value is the 72-h EC10of 0.56 mg/L observed for the effect of the test item on growth rate of Desmodesmus subspicatus.

 

The 48-h NOEC value forDaphnia magnawas 0.112 mg/L.

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