Registration Dossier

Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

Administrative data

Endpoint:
biodegradation in water and sediment: simulation tests
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other: Prediction model
Title:
Biodegradation in water and sediment by EPI (Estimation Programs Interface) Suite
Author:
Sustainability Support Service (Europe) AB - estimated
Year:
2011
Bibliographic source:
Estimation Programs Interface Suite™ United States Environmental Protection Agency, Washington, DC, USA. version 4.1

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: Modelling database
Principles of method if other than guideline:
Level III Fugacity Model
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Radiolabelling:
not specified

Study design

Oxygen conditions:
not specified
Inoculum or test system:
other: water/sediment
Parameter followed for biodegradation estimation:
test mat. analysis
Details on study design:
Persistence Time : 1420 (1.42e+003) hr
Reaction Time : 2110 (2.11e+003) hr
Reference substance
Reference substance:
not specified

Results and discussion

Mean total recoveryopen allclose all
Compartment:
other: water, material (mass) balance
% Recovery:
23.2
Compartment:
other: sediment, material (mass) balance
% Recovery:
0.088
% Degradation
% Degr.:
50
Parameter:
test mat. analysis
Half-life of parent compound / 50% disappearance time (DT50)open allclose all
Compartment:
water
DT50:
900 h
Type:
not specified
Compartment:
sediment
DT50:
8 100 h
Type:
not specified
Transformation products:
not specified
Evaporation of parent compound:
not specified
Volatile metabolites:
not specified
Residues:
not specified
Details on results:
Biodegradation in water : 50% degradation in 900 hr
Biodegradation in sediment : 50% degradation in 8100 hr

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Executive summary:

Biodegradation : 50% degradation in both sediment and water.