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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

No effects up to the limit of water solubility (OECD 201).

Key value for chemical safety assessment

Additional information

One experimental study is available investigating the effects of Fatty acids, vegetable-oil, esters with dipropylene glycol (CAS 95009-41-9) to the freshwater algae Desmodesmus subspicatus (Muckle, 2014). The study was performed according to OECD 201 as a limit test. A test substance concentration of 1000 mg/L was prepared as water accommodated fraction (WAF) and the corresponding loading rate was tested. Chemical analysis by GC could not quantify the substance in the test solutions as the measured concentrations were below the Limit of Quantification (LOQ; 0.066 mg/L). The growth rate of algae was not inhibited after 72 h resulting in a NOELR of ≥ 1000 mg/L (corresponding to ≥ 66 µg/L based on the LOQ) and an EL50 of > 1000 mg/L (corresponding to > 66 µg/L based on the LOQ).