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Environmental fate & pathways

Phototransformation in air

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Description of key information

The calculated half-life of o-toluidine by photodegradation in air was 2.915 hours with an Overall OH rate constant of 132.0953E-12 cm³/molecule-sec.

Key value for chemical safety assessment

Half-life in air:
2.915 h
Degradation rate constant with OH radicals:
0 cm³ molecule-1 s-1

Additional information

The indirect photodegradation in air was calculated with the Estimation Program Interface EPI-Suite version 4.11. The estimated half-life of the substance was 2.915 hours with an Overall OH rate constant of 132.0953E-12 cm³/molecule-sec considering a daily (24h) mean OH-radical concentration of 500 000 radicals per cm3.

The estimation rules applied for the substance appears appropriate.

The predicted result for o-toluidine can be considered reliable yielding a useful result for further assessment.