Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 204-278-6 | CAS number: 118-79-6
Biodegradation in soil
Administrative data
Link to relevant study record(s)
Description of key information
The study selected for allocation of the key value, Garcia Mônego (2008), was performed to GLP and to current accepted guidelines, and as such was considered of high reliability and adequate for the assessment of Biodegradation in soil of the test material, 2,4,6-tribromophenol.
Key value for chemical safety assessment
- Half-life in soil:
- 7 d
- at the temperature of:
- 20 °C
Additional information
Reference: Garcia Mônego, J. (2008)
Reliability: 1
Result: A mean half life (based on the 3 soil types tested) of 7 days, ranging from 5 to 10 days, indicating non-persistence in the three tested soils. The result of the metabolic pathway under aerobic conditions was mineralisation to carbon dioxide and the formation of bound residues.
Soil |
%Degr. |
Parameter |
Sampling time |
Sandy clay loam |
88.21 |
Test mat. analysis |
120 d |
Clay |
92.02 |
Test mat. analysis |
120 d |
Sand |
93.41 |
Test mat. analysis |
120 d |
Soil |
Half-life |
Type |
Remarks (e.g. regr. equ., r², DT90) |
Sandy clay loam |
5 d |
(pseudo-)first order (= DT50) |
DT90 17 days (biotic) |
Clay |
10 d |
(pseudo-)first order (= DT50) |
DT90 31 days (biotic) |
Sand |
6 d |
(pseudo-)first order (= DT50) |
DT90 19 days (biotic) |
Sandy clay loam |
189 d |
(pseudo-)first order (= DT50) |
DT90 629 days (abiotic) |
Clay |
252 d |
(pseudo-)first order (= DT50) |
DT90 837 days (abiotic) |
Sand |
523 d |
(pseudo-)first order (= DT50) |
DT90 523 days (abiotic) |
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
