Registration Dossier

Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Under the testing conditions of the activated sludge respiration inhibition test (carbon and ammonium oxidation) with 4,4’-DDS, 4,4’-DDS was slightly toxic to wastewater (activated sludge) bacteria. The EC50 however was above the highest loading rate tested, a loading rate of 1000 mg/l. 

Key value for chemical safety assessment

EC50 for microorganisms:
1 000 mg/L

Additional information