2-phenyl-1H-benzimidazole-5-sulphonic acid

Biodegradation in water and sediment: simulation tests

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

biodegradation in water: sediment simulation testing

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

other:

Transformation products:

not measured

Remarks:

In the three available biodegradation tests only 0, 2 and 9% degradation was observed, showing that no relevant primary degradation takes place.

Reference 2

Endpoint:

biodegradation in water: simulation testing on ultimate degradation in surface water

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

other:

Transformation products:

not measured

Remarks:

In the three available biodegradation tests only 0, 2 and 9% degradation was observed, showing that no relevant primary degradation takes place.

Description of key information

Based on the information from screening biodegradation and hydrolysis tests it has to be assumed that the test substance is persistent in the environment as no biotic or abiotic degradation was observed. Further biodegradation testing will probably come to the same results. As the chemical safety assessment does not indicate the need to investigate further the degradation of the substance, further simulation tests are not necessary.