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Environmental fate & pathways

Biodegradation in water: screening tests

Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
other: predicted data
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other: Prediction model
Title:
Biodegradation in water : screening tests by Environmental Science Center’s PBT profiler
Author:
Environmental Science Center
Year:
2013
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
Guideline:
other: modelling database
Principles of method if other than guideline:
Data is from PBT Profiler Database.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
5-aminonaphthalene-2-sulphonic acid
EC Number:
204-351-2
EC Name:
5-aminonaphthalene-2-sulphonic acid
Cas Number:
119-79-9
Molecular formula:
C10H9NO3S
IUPAC Name:
5-aminonaphthalene-2-sulfonic acid
Details on test material:
Name of the test material: 5-aminonaphthalene-2-sulphonic acid
Molecular formula: C10H9NO3S
Molecular weight: 223.26
Physical state: Solid
Substance Type: Organic

Study design

Oxygen conditions:
other: estimation
Inoculum or test system:
not specified
Duration of test (contact time):
38 d

Results and discussion

% Degradation
Parameter:
other: half life
Value:
50
Sampling time:
38 d
Remarks on result:
other: 38 d = 912 hrs
Details on results:
Half life = 38 days

Applicant's summary and conclusion

Interpretation of results:
readily biodegradable
Conclusions:
5-aminonaphthalene-2-sulphonic acid is 50% biodegradable in water in 38 days (half-life) indicating that 5-aminonaphthalene-2-sulphonic acid is readily biodegradable in water since the half life is less than the threshold of 60 days (to qualify the chemical as persistent).
Executive summary:

5-aminonaphthalene-2-sulphonic acid is 50% biodegradable in water in 38 days (half-life) indicating that 5-aminonaphthalene-2-sulphonic acid is readily biodegradable in water since the half life is less than the threshold of 60 days (to qualify the chemical as persistent).

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