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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

ErL50 (72 h): 23.54 mg/L based on growth rate (nominal; OECD 201)
ErL10 (72 h): 1.76 mg/L based on growth rate (nominal; OECD 201)

Key value for chemical safety assessment

EC50 for freshwater algae:
23.54 mg/L
EC10 or NOEC for freshwater algae:
1.76 mg/L

Additional information

One experimental study is available investigating the toxicity of the test substance to the freshwater algae Desmodesmus subspicatus (Spoo-Klöppel, 2016). The study was conducted according to OECD 201 (GLP) under static conditions. Test solutions were prepared as nominal loading rates of 0.1, 0.32, 1.0, 3.2, 10, 32, 100 mg/L by adding appropriate amounts of the test substance to the test medium followed by 24 h stirring and subsequent filtration using a folded filter. Analysis of the test substance was performed by DOC analysis and HPLC. After 72 h an ErL50 of 23.54 mg/L and an ErL10 of 1.76 mg/L were calculated based on the growth rate.

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