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Environmental fate & pathways

Phototransformation in air

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Reference
Endpoint:
phototransformation in air
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Principles of method if other than guideline:
Calculation using SRC AOP v1.92
GLP compliance:
no
Estimation method (if used):
PHOTOCHEMICAL REACTION WITH OH RADICALS
- Concentration of OH radicals: 500000 molecules/cm3
- Degradation rate constant: 2.9783E-12 cm3/molecules*s
- Computer programme: SRC AOP v1.92
- Other: assuming a 24-hour day
DT50:
129 h
Executive summary:

In this study conducted to generally accepted scientific standards the test material (EC 423-340-5) was determined to have a half-life in air of 129 hours

Description of key information

 Study conducted to generally recognised scientific standards

Key value for chemical safety assessment

Half-life in air:
129 h

Additional information

In a SRC AOP v1.92 calculation a degradation rate constant for the indirect photolysis of 2.98E-12 cm3/molecules*s was calculated. Therefore, the test substance has a half-life in air of 129 hours.