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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

Pseudokirchnerella subcapitata  72hr (growth rate)  EC50=1570  EC0=300mg/l
Scenedesmus subspicatus 72hr (growth rate: EC0>500mg/l

Key value for chemical safety assessment

EC50 for freshwater algae:
1 570 mg/L
EC10 or NOEC for freshwater algae:
300 mg/L

Additional information

There is limited data available on the toxicity of 2 -butoxyethyl acetate to algae, but sufficient to meet the requirements of the end point. Two experimentally derived results are available, both showing relatively low toxicity to the species. The study used as the key study shows the lower of the two results and is to a modern protocol. It is deemed reliable, although the available publication is not particularly detailed. The data is sufficient to judge with confidence that the substance is of low toxicity to algae. The data is also sufficient to provide a NOEC for use in deriving the PNEC for the aquatic compartment.