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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The test substance is with high probability not acutely harmful to aquatic algae. No acute toxic effects occur within the range of solubility.

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Additional information

According to OECD 201 and GLP a short-term toxicity test has been conducted using Pseudokirchneriella subcapitata (Springborn Laboratories, Inc. 1998). Due to the low solubility of the test substance water accommodated fractions have been used. After 96 h of exposure no effects up to the solubility of the test substance have been observed. The EC50 (growth rate) was determined to be above 0.64 mg/L and the NOEC (growth rate) was determined to be at least 0.64 mg/L (measured). The test concentration is the highest test substance concentration that could be determined by using a saturated solution. Therefore, the test item is with high probability not acutely harmful to aquatic algae.