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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

A 72 hour acute toxicity study using cultures of Pseudokirneriella subcapitata exposed to Esterol A was conducted under static conditions in accordance with the OECD guideline201. 

Key value for chemical safety assessment

EC50 for freshwater algae:
0.131 mg/L
EC10 or NOEC for freshwater algae:
0.131 mg/L

Additional information

A 72 hour acute toxicity study using cultures of Pseudokirneriella subcapitata exposed to Esterol A was conducted under static conditions in accordance with the OECD guideline201. 

Nominal loading rate concentrations were expressed of LS1/51.5 ; LS1/23.4 ; LS1/10.6 ; LS1/4.84 ; LS1/2.20 and 0 (control) with LS1 =limit of saturation obtained from an initial loading rate of 1 mg/L. The test was conducted under static conditions.