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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

ErC50 (72 h) > 97.4 mg/L (mean measured) for Pseudokirchneriella subcapitata (according to OECD 201)
NOErC (72 h) = 97.4 mg/L (mean measured) for Pseudokirchneriella subcapitata (according to OECD 201)

Key value for chemical safety assessment

Additional information

The acute toxicity of 2 -isocyanatoethyl methacrylate (MOI) to algae was tested in a study conducted by Showa Denko (2013), using Pseudokirchneriella subcapitata as test species. This static dose-response test was carried out according to the OECD-Guideline 201 under GLP-conditions over a period of 72 h. The nominal test concentrations used were 0, 6.25, 12.5, 25.0, 50.0 and 100 mg/L corresponding to mean measured concentrations of 0, 6.11, 12.1, 23.7, 51.3 and 97.4 mg/L. The resulting LC50 was >97.4 mg/L (geometric mean measured), the NOEC was 97.4 mg/L (geometric mean measured).