Registration Dossier

Diss Factsheets

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Short-term toxicity to fish

The LC0 after 96 h was determined to be 100 mg/L. Therefore, the LC50 is determined to be higher than 100 mg/L.

Short-term toxicity to aquatic invertebrates

The EC50 of the test item on Daphnia magna was determined after 48 h exposure to be 19.7 mg/L. The NOEC was determined to be 3 mg/L.

Toxicity to aquatic algae

The 72-h EC10 and EC50 based on growth rate were determined to be  2.5 and 3.4 mg/L, respectively. The NOEC based on growth rate and yield was determined to be 1.4 mg/L.

Toxicity to microorganisms

Under the conditions of the performed test, a strong test item effect on the pH was established. Without pH adjustment the EC50 value of test item was determined as 618.8 mg/L (95% confidence limits: 514.6 – 757.8 mg/L), (1000 mg/L > EC50 > 100 mg/L) and the NOEC calculated as 100 mg/L. With an additional pH adjustment, neutralization step, the EC50 became higher than 1000 mg/L (EC50 > 1000 mg/L) and the NOEC was determined as 320 mg/L.

Additional information