Registration Dossier

Environmental fate & pathways

Biodegradation in soil

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
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)
Rationale for reliability incl. deficiencies:
other: Data is from computational model developed by USEPA
Reference:
Composition 0
Qualifier:
according to
Guideline:
other: Modeling database
Principles of method if other than guideline:
Data is estimated using EPI suite Level III Fugacity Model.
GLP compliance:
no
Test type:
other: Estimated
Test material information:
Composition 1
Radiolabelling:
not specified
Oxygen conditions:
other: estimation
Soil classification:
not specified
Soil No.:
#1
% Degr.:
50
Parameter:
other: Half life
Sampling time:
75 d
Soil No.:
#1
Half-life:
75 d
Type:
other: estimated data
Remarks on result:
other: other details not available
Transformation products:
not specified
Evaporation of parent compound:
not specified
Volatile metabolites:
not specified
Residues:
not specified

 

 

Mass Amount

(percent)

Half-Life

(hr)

Emissions

(kg/hr)

Soil

84.9

1.8e+003

1000

 

 

Fugacity

(atm)

Reaction

(kg/hr)

Advection

(kg/hr)

Reaction

(percent)

Advection

(percent)

Soil

2.08e-017

1.66e+003

0

55.3

0

 

Conclusions:
Biodegradation half-life of test substance (5Or8)-aminonaphthalene-2-sulphonic acid in soil was estimated to be 75 days (1800 hrs).

Executive summary:

Based on EPI prediction Level III Fugacity Model (EPI suite, 2016), the estimated half-life period of (5Or8)-aminonaphthalene-2-sulphonic acid (CAS No. 51548 -48 -2) in soil was obtained to be 75 days (1800 hrs). Based on this half-life value of (5Or8)-aminonaphthalene-2-sulphonic acid, it is concluded that the chemical is not persistent in the soil environment.

Description of key information

Based on EPI prediction Level III Fugacity Model (EPI suite, 2016), the estimated half-life period of (5Or8)-aminonaphthalene-2-sulphonic acid (CAS No. 51548 -48 -2) in soil was obtained to be 75 days (1800 hrs). Based on this half-life value of (5Or8)-aminonaphthalene-2-sulphonic acid, it is concluded that the chemical is not persistent in the soil environment.

Key value for chemical safety assessment

Half-life in soil:
75 d
at the temperature of:
25 °C

Additional information

Based on EPI prediction Level III Fugacity Model (EPI suite, 2016), the estimated half-life period of (5Or8)-aminonaphthalene-2-sulphonic acid(CAS No. 51548 -48 -2) in soil was obtained to be 75 days (1800 hrs). Based on this half-life value of (5Or8)-aminonaphthalene-2-sulphonic acid, it isconcluded that the chemical is not persistent in the soil environment.