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Environmental fate & pathways

Phototransformation in air

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Reference
Endpoint:
phototransformation in air
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Scientifically acceptable method
Principles of method if other than guideline:
calculated using SRC AOP v1.92
GLP compliance:
no
Estimation method (if used):
PHOTOCHEMICAL REACTION WITH OH RADICALS
- Concentration of OH radicals: 15000000
- Degradation rate constant: 0.0000000000021543 cm3/molecule-sec
- Temperature for which rate constant was calculated: 25°C
- Computer programme: SRC AOP v1.92
- calculated t 1/2 is based on 12 hours

DT50:
59.58 h

Description of key information

 After evaporation or exposure to the air,1,3-propanesultone will be slowly degraded by photochemical processes.

Key value for chemical safety assessment

Half-life in air:
59.58 h

Additional information

According to a calculation performed using SRC AOP v1.92 test item will be slowly photodegraded in the atmosphere. The calculated half life is 59.58 hours at a rate constant of 0.0000000000021543 cm³/molecule-sec. For the calculation a sensitiser concentration of 1500000 OH radicals and a 12 hour day were assumed.