Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Although DIUP has the potential to photodegrade in air at a relatively rapid rate (4.2 hour half-life based on a 12-hour day), because it has a very low vapour pressure, it is not expected to partition to the air to a great extent where this process could significantly influence its fate. Therefore, abiotic degradation processes including hydrolysis and phototransformation in water will not significantly contribute to the removal of DIUP from the environment.

DIUP has been shown to biodegrade rapidly in tests of ready biodegradability and to high extents in tests of inherent biodegradability using standard test guidelines. Therefore, biotic degradation will significantly contribute to the loss of DIUP from the environment