Registration Dossier

Environmental fate & pathways

Phototransformation in soil

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Administrative data

Endpoint:
phototransformation in soil
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion

Executive summary:

INDIRECT PHOTOLYSIS in soil  OH radical induced indirect photolysis of C20/22 ATQ in air can be estimated with US EPA AOPWIN Program estimating low degradation half-lives (C20 homologue 9.7h, C22 homologue 9h). Therefore C20/22 ATQ may be degraded on soil surface by indirect photolysis but as C20/22 ATQ is rapildly biodegraded in aerobic soils (see IUCLID Section 5.2.3) indirect photolysis will play a minor role in degradation.