Registration Dossier

Administrative data

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: Calculation method
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Reference
Reference Type:
other: (Q)SAR
Title:
AopWin v1.92
Author:
Anon
Year:
2008
Bibliographic source:
US Environment Protection Agency

Materials and methods

Test guideline
Deviations:
not applicable
Principles of method if other than guideline:
Calculation method.

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Dissipation half-life of parent compound
DT50:
0.22 d
Test condition:
(Q)SAR: OH Rate Constant = 49.1082 E-12 cm3/molecule-sec
Transformation products:
not specified

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
  Half-Life =    0.218 Days (12-hr day; 1.5E6 OH/cm3)
Executive summary:

Output from AopWin Version 1.92:-

Atmospheric Oxidation (25 deg C) [AopWin v1.92]:

  Hydroxyl Radicals Reaction:

     OVERALL OH Rate Constant = 49.1082 E-12 cm3/molecule-sec

     Half-Life =    0.218 Days (12-hr day; 1.5E6 OH/cm3)

     Half-Life =    2.614 Hrs

  Ozone Reaction:

     No Ozone Reaction Estimation

  Reaction With Nitrate Radicals May Be Important!

  Fraction sorbed to airborne particulates (phi):

     0.000124 (Junge-Pankow, Mackay avg)

     0.0106 (Koa method)

   Note: the sorbed fraction may be resistant to atmospheric oxidation