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Environmental fate & pathways

Phototransformation in air

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phototransformation in air
Type of information:
calculation (if not (Q)SAR)
Migrated phrase: estimated by calculation
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Scientifically accepted calculation method
Principles of method if other than guideline:
Calculated using AOP WIN v1.92, a subroutine of the computer program EPI Suite™ (Estimation Program Interface for Windows, version 4.0. Syracuse Research Corporation, Syracuse, NY, USA) U.S. Environmental Protection Agency, OPPT
Estimation method (if used):
AOP WIN v1.92
58.875 min
Test condition:
Estimated value

Description of key information

Disulfiram is susceptible to rapid photolytic degradation in air (DT50 = 57.9 min).

Key value for chemical safety assessment

Additional information

The dissipation half-life of disulfiram (CAS No. 97-77-8) in air was calculated using the AOPWIN subroutine from EPISuite™ computer program (US EPA). This substance degrades rapidly in the atmosphere (half-life = 58.87 minutes).