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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The growth inhibition on the freshwater algae Scenedesmus subspicatus was tested by Infracor GmbH (2002) in a 72-h

Key value for chemical safety assessment

EC50 for freshwater algae:
172 mg/L
EC10 or NOEC for freshwater algae:
135 mg/L

Additional information

The effects of the substance on the growth of the alga Scenedesmus subspicatus were investigated by Infracor GmbH (2002) according to EU method C.3 and OECD TG 201. Six concentrations ranging from 13 mg/L to 243 mg/L were tested over a period of 72 hours. Based on biomass development an EbC50 (72 h) of 176 mg/L and a 72 h-EbC10 of 137 mg/L were determined. Based on growth rate an ErC50 of 172 mg/l and a 72 h-ErC10 of 141 mg/l were determined. The NOEC based on cell growth (biomass) was determined as 135 mg/l.