Registration Dossier

Administrative data

Endpoint:
biodegradation in soil
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 soil by Environmental Science Center’s PBT profiler
Author:
Environmental Science Center
Year:
2010
Bibliographic source:
PBT profiler, Office of Chemical Safety and Pollution Prevention , U.S. Environmental Protection Agency; version 1.301

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: Modeling database
Principles of method if other than guideline:
PBT profiler database
GLP compliance:
no
Test type:
other: estimated data

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: crystalline
Details on test material:
-Name of test material : 4-fluorophenol
- Molecular formula : C6H5FO
- Substance type: Organic
- Physical state: Solid
Radiolabelling:
not specified

Study design

Oxygen conditions:
other: estimated data
Duration of test (contact time)
Soil No.:
#1
Duration:
75 d

Results and discussion

% Degradation
Soil No.:
#1
% Degr.:
50
Parameter:
test mat. analysis
Sampling time:
75 d
Half-life / dissipation time of parent compound
Soil No.:
#1
DT50:
75 d
Type:
other: estimated
Transformation products:
not specified

Any other information on results incl. tables

Media

Half life

(days)

Percent in Medium

Soil

75

80%

Applicant's summary and conclusion

Conclusions:
Half life period of 4-fluorophenol in Soil was observed to be 75 days which exceeds the EPA criteria of 60 days. Based on these half life values it is concluded that 4-fluorophenol is not readily biodegradable (persistent) in Soil.
Executive summary:

Based on level III fugacity model the half life period of 4-fluorophenol was estimated

Half life period of 4-fluorophenol in Soil was observed to be 75 days which exceeds the EPA criteria of 60 days. Based on these half life values it is concluded that 4-fluorophenol is not readily biodegradable (persistent) in Soil.