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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Link to relevant study record(s)

Description of key information

One reliable Guideline study is available.

Key value for chemical safety assessment

EC50 for freshwater algae:
800 mg/L
EC10 or NOEC for freshwater algae:
800 mg/L

Additional information

The test was performed according to the recommendations of the OECD Guideline 201.

The purpose of this study was to determine the inhibitory effect of the test item on the growth of the fresh water unicellular green alga Scenedesmus subspicatus. Exponentially growing cultures of this algal species were exposed to various concentrations of the test item under defined conditions. The ErC50 (growth rate), ErC100 (growth rate) and NOEC was estimated for a period of 72 hours.

Following results were determined:

72 -h NOEC: 800 mg/l

72 -h EC50: > 800 mg/l

72 -h EC100: > 800 mg/l