Registration Dossier

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The ErC50 value was determined to be 21.4 mg/L in a 72-hour static test with Desmodesmus subspicatus. The NOEC (growth rate) is 9.65 mg/L.

Key value for chemical safety assessment

EC50 for freshwater algae:
21.4 mg/L
EC10 or NOEC for freshwater algae:
9.65 mg/L

Additional information

The acute toxicity of the test item was tested in an algal inhibition test over 72h with Desmodesmus subspicatus. The assay was conducted according to EU method C.3. The test subjects were exposed to nominal concentrations of 4.6, 10, 19.9 and 41 mg/L for 72 h. From the data obtained through the test an ErC50 (based on growth rate) of 21.4 mg/L was determined. The No Effect Concentration (NOEC) based on growth rate is 9.65 mg/L.