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:
experimental study
Adequacy of study:
other information
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: No guideline study, endpoint of low relevance.

Data source

Reference
Reference Type:
publication
Title:
Preliminary characterization of four 2-chlorobenzoate-degrading anaerobic bacterial consortia
Author:
Sharak Genthner, B.
Year:
1999
Bibliographic source:
Biodegradation 10: 27-33, 1999

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Anaerobic transformation with 2-chlorobenzoate-degrading methanogenic consortia derived from freshwater sediment enrichments.
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent

Study design

Inoculum or test system:
anaerobic bacteria
Duration of test (contact time):
<= 9 mo
Initial test substance concentration
Initial conc.:
100 µmol/L
Based on:
test mat.

Results and discussion

Transformation products:
yes
Identity of transformation products
No.:
#1
Reference
Reference substance name:
Unnamed
Inventory number:
InventoryMultipleMappingImpl [inventoryEntryValue=EC 241-801-7]
IUPAC name:
(2-chlorophenyl)methanol
CAS number:
17849-38-6

Any other information on results incl. tables

2-chlorobenzylalcohol was not observed to decline.

Applicant's summary and conclusion

Validity criteria fulfilled:
not applicable
Conclusions:
Under anaerobic conditions with methanogenic bacterial consortia, reductive biotransformation of 2-chlorobenzaldehyde to 2-chlorobenzyl alcohol is observed.
Executive summary:

With the used methanogenic anaerobic bacterial consortia, only primary biodegradation of 2-chlorobenzaldehyde to 2-chlorobenzyl alcohol (reductive biotransformation) was observed. No degradation of 2-chlorobenzyl alcohol could be detected.