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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 202-851-5 | CAS number: 100-42-5
Toxicity to birds
Administrative data
Link to relevant study record(s)
Description of key information
The environmental fate and the low log Kow of Styrene indicate, that secondary poisoning is an unlikely exposure pathway.
Key value for chemical safety assessment
Additional information
There are no data available concerning toxicity of styrene for birds. However no test is proposed to cover this endpoint for the following reasons.
In the case of readily biodegradable substances which are not applied to soil it is generally assumed that the substance will not enter the terrestrial environment.
Styrene is not a strong adsorptive substance, is volatile and rapidly degraded in the air via photo oxidation, so that an indirect soil exposure via STP sludge and aerial deposition is considered to be not relevant. The exposure of birds to the substance is therefore considered as negligible. In addition, the low log Kow (2.96) suggests that secondary poisoning is unlikely to be an important exposure pathway. Furthermore the study does not need to be conducted as sufficient reliable data are available from the mammalian dataset.
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.
