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Toxicity to aquatic algae and cyanobacteria

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Description of key information

With high probability acutely not harmful for aquatic algae.

Key value for chemical safety assessment

Additional information

In a non-GLP, 72-hour static test with the green alga Scenedesmus subspicatus ( new name: Desmodesmus subspicatus) according to German Industrial Standard DIN 38412 part 9, the algae toxicity of 2-(2-aminoethoxy)ethanol was investigated. Statistical evaluation of the endpoint growth rate revealed an EC50 (72h) of 202 mg/L, the NOEC was estimated to be 62.5 mg/L.

In a test on the marine algae Skeletonema costatum according to OECD 201 (Huntingdon Life Science, 1999) the ErC50 was determined as > 100 mg/L which was the highest concentration tested.

Further, the substance was tested under marine conditions according to ISO 10253 (Eide-Haugmo, 2009/2012), using Skeletonema costatum as test organism. The 72-h ErC50 was determined to be 493 mg/L.

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