Registration Dossier

Environmental fate & pathways

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Additional information

Although DTDP has the potential to photodegrade in air at a relatively rapid rate (4 hour half-life based on a 12-hour day), because it has a very low vapor 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 DTDP from the environment. DTDP has been shown to biodegrade moderately in tests of ready biodegradability and in tests of inherent biodegradability using standard test guidelines. Therefore, biotic degradation will contribute to the loss of DTDP from the environment.