Registration Dossier

Ecotoxicological information

Toxicity to microorganisms

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The respiration of activated sludge was unaffected by 3-h exposure to tetrachlorophthalic anhydride at nominal concentrations between 100 and 10000 mg/L. An EC10 and an EC50 of >10000 mg/l were obtained in this test. The effect values relate to nominal concentrations, since no analytical monitoring was performed.

Key value for chemical safety assessment

EC50 for microorganisms:
10 000 mg/L
EC10 or NOEC for microorganisms:
10 000 mg/L

Additional information

"Should read: > 10000 mg/L"