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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

Acutely very toxic to aquatic algae.
EC50 (72 h, growth rate) = 0.88 mg/L (nominal) (Scenedesmus subspicatus , OECD TG 201)
EC10 (72 h, growth rate) = 0.25 mg/L (nominal) (Scenedesmus subspicatus , OECD TG 201)

Key value for chemical safety assessment

EC50 for freshwater algae:
0.88 mg/L
EC10 or NOEC for freshwater algae:
0.25 mg/L

Additional information

The determination of inhibitory effects on Scenedesmus subspicatus and Selenastrum capricornutum of 2-dimethylaminoethyl acrylate was performed in two different studies according to EU-Directive 79/831/EWG and OECD Guideline 201 (Alga, Growth Inhibition Test). The results of these studies showed EbC50 values of 0.23 mg/L and 0.201 mg/L, respectively. The measurements of the growth inhibition within the EU-Directive 79/831/EWG guideline study showed an ErC50 and ErC10 value of 0.88 mg/L and 0.25 mg/L, respectively. For the OECD guideline study a ErC50 > 1 mg/L and NOEC of 0.01 mg/L after 72 hours of exposure was given. Based on the presented results with high probability, 2-dimethylaminoethyl acrylate is acutely very toxic to aquatic algae.

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