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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

In a reliability 2 publication, an EC50 72h in freshwater algae of 107 mg/L was found, without report of pH during the test. The EC10 in the same test was 90.6 mg/L.

Key value for chemical safety assessment

EC50 for freshwater algae:
107 mg/L
EC10 or NOEC for freshwater algae:
91 mg/L

Additional information

The ecotoxicity of acetylsalicylic acid has been evaluated using a growth test in freshwater algae Desmodesmus subspicatus according to OECD GL 201. The EC50r 72h in algae was 106.7 mg/L and EC10 of 90.6 mg/L. No pH measurements data are available, nor neutralization procedure is described. Therefore the toxicity is probably due to both acidic effect and substance toxicity itself.