Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Biofert Plusz proved to be of low toxicity to Desmodesmus subspicatus in a study conducted according to OECD Guideline 201 (72 h ErC50: 148 mg/L based on geometric mean measured concentrations).

Key value for chemical safety assessment

EC50 for freshwater algae:
148 mg/L
EC10 or NOEC for freshwater algae:
64.3 mg/L

Additional information

The toxicity of Biofert Plusz towards the unicellular green alga Desmodesmus subspicatus was investigated in a study conducted according to OECD Guideline 201 (Alga, Growth Inhibition Test). Cultures of Desmodesmus subspicatus were exposed to 5 Biofert Plusz concentrations ranging from 339 to 3559 mg/L test material (nominal) corresponding to geometric mean measured concentrations ranging from 126 to 1579 mg/L test material. The concentration of the main component of Biofert Plusz L-Threonine was determined by HPLC/UV. Based on geometric mean measured concentrations the 72 h ErC50 and 72 h EyC50 were determined to be 528 and 254 mg/L, respectively, corresponding to 148 (ErC50) and 71.4 mg dry matter/L (EyC50).