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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

An ErC50 of 11 mg/L (measured, TWA) and a NOEC of 6.6 mg/L (measured, TWA) was determined under conditions tested for aquatic algae. Thus, toxic effects to aquatic algae were observed within the water solubility.

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Additional information

One study investigating the effects of Glycerides, C8-18 and C18-unsatd. mono- and di-, acetates (CAS-No. 91052 -13 -0) on aquatic algae is available. The static study with the freshwater algae Pseudokirchneriella subcapitata was conducted according to OECD Guideline 201 over a period of 72 hours. Water Accommodated Fractions (WAF) with a loading rate of 2.6, 4.6, 16, 40 and 100 mg/L were individually prepared by siphoning the solution through glass wool. The resulting test solutions of WAFs with a loading rate of 10 mg/L and higher remained slightly hazy to hazy. The TOC content of the WAF was determined to be 6.6 (WAF loading rate 16 mg/L), 5.9 (WAF loading rate 40 mg/L) and 15.7 mg/L (WAF loading rate 100 mg/L) (measured as TWA). An ErC50 of 11 mg/L (measured, TWA) and a NOEC of 6.6 mg/L (measured, TWA) was determined in the study. Thus, toxic effects to aquatic algae were observed within the water solubility.