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Environmental fate & pathways

Biodegradation in water: screening tests

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Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2002
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002
Report date:
2002

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
443-460-1
EC Name:
-
Cas Number:
188199-50-0
Molecular formula:
C16H28O2
IUPAC Name:
(1R,2S,2'S,4R)-1,7,7-Trimethylbicyclo (2.2.1)heptane-2-spiro-4'-(2'-isopropyl-1',3'-dioxane)

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge (adaptation not specified)
Duration of test (contact time):
29 d
Initial test substance concentration
Initial conc.:
100 mg/L
Based on:
test mat.

Results and discussion

% Degradation
Parameter:
% degradation (O2 consumption)
Value:
4
Sampling time:
29 d

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Interpretation of results:
under test conditions no biodegradation observed
Conclusions:
The ready biodegradabilty of Belambre was determined by the manometric Respirometry test acording to the OECD Guidelines for testing of chemicals, Method No 301F.
Belambre undergoes no significant biodegradation (4% after 29 days) in the test conditions.
Thus, Belambre should be regarded as not readily biodegradable according to this test.
At concentration used in the test (100mg/L), BELAMBRE is not inhibitory of microorganisms.