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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

In a 3h inhibition test with THPC-urea on activated sludge a EC50 of 303 mg/L (test item as described in Chap 1.2) was determined.

Key value for chemical safety assessment

EC50 for microorganisms:
303 mg/L

Additional information

In a 3h inhibition test with THPC-urea on activated sludge an EC50 of 303 mg/L (test item as described in Chap 1.2) was determined.

The same 3h inhibition test with THPC on activated sludge shows an EC50 of 55 mg/L.