Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Endpoint summary
Administrative data
Description of key information
In order to comply with REACH requirements to perform a PBT assessment on complex petroleum substances, a systematic review of the persistence and bioaccumulation properties of petroleum hydrocarbons was conducted by CONCAWE [described in detail in the attached report (IUCLID section 13.2)]. Consistent with REACH technical guidance and Annex XIII criteria, petroleum hydrocarbons were evaluated using a hydrocarbon block (HCB) scheme that divided these constituents into ten major classes by carbon number.
The review is actually a supporting document for the PBT/vPvB assessment of petroleum substances, but can also be used for Gas-to-liquids (GTL) products containing the same hydrocarbons.
Measured data and model predictions were used to develop an evidence-based conclusion for each HCB.
The results of this analysis indicated that within a given HCB class, higher carbon numbers tended to fulfill the persistence criterion while lighter carbon numbers sometimes met the B criterion. None of the HCBs were found to meet the vB criterion, so no HCBs fulfill the vPvB criteria.
Based on the report, all constituents in the carbon range relevant for the registration substance 'Paraffin waxes (Fischer-Tropsch), isomerization' [>C25 linear and branched alkanes (paraffins)] do not fulfil the B/vB criteria.
Moreover, it can be concluded that for PBT and risk assessment purposes, the metabolites of hydrocarbons are not required to be further assessed: it has been demonstrated that for all the major classes of hydrocarbons, the major metabolites formed are in all cases less toxic, less persistent and less bioaccumulative than the parent molecule.
Additional information
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.
