Registration Dossier

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

(72 h) ErL50 and EbL50 22-46 mg/L WAFs and NOEL 4.6 mg/L (>LoS).

Key value for chemical safety assessment

Additional information

The presence of branched structures does not appear confer aliphatic alcohols any different environmental properties compared to the Alcohols, C14 -15 linears only substance. Therefore the data is freely read-across between Alcohols, C14 -15 and Alcohols, C14 -15 -branched substances.

A reliable (72 h) ErL50 and EbL50 values of 22-46 mg/L as water accomodated fractions (WAFs) have been determined for the effects of NEODOL 45E on the growth rate and biomass on the freshwater algae Raphidocelis subcapitata (new name: Pseudokirchnerella subcapitata). A (72 h) NOEL value of 4.6 mg/L has also been determined during the same experiment. The water solubility of the test substance is 0.7 mg/L at 20 egC [Bridie et al. 1973, <1.3 [Sasol] and 0.15 mg/l at a loading rate of 1000 mg/L, therefore Alcohols, C14 -15-branched are non-toxic at the limit of solubility (>LoS).

This is the only reliable value and has been selected as key.