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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

2-[(1-methylpropyl)amino]ethanol was found to be harmful to aquatic algae.

Key value for chemical safety assessment

EC50 for freshwater algae:
27.3 mg/L
EC10 or NOEC for freshwater algae:
4.59 mg/L

Additional information

Acute toxicity of 2-[(1-methylpropyl)amino]ethanol toPseudokirchnerella subcapitatahas been investigated through OECD Guideline 201 and according to GLP requirements (Kuhl, 2010). The algae were exposed for 72 hours at different nominal concentrations of 1.0, 3.2, 10, 32 and 100 mg/L. The EC50 - 72h and EC10 -72h values for growth rate were 27.3 and 4.59 mg/L, respectively. At the start of the test 108 % of the nominal test concentrations were found (average of all test concentrations). After 72 hours test duration, 107 % of the nominal value was determined (average of all test concentrations). During the test the algae were exposed to a mean of 107 % of nominal. Therefore, all reported results refer to nominal concentrations. All the validity criteria were fulfilled.