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EC number: 234-853-7
CAS number: 12036-76-9
Biodegradation in water and sediment is not an applicable endpoint for
lead. According to Column 2 of REACH Annex VII, the Ready
Biodegradation Test does not need to be conducted if the substance is
Annex VIII states that "Further
degradation testing shall be considered if the chemical safety
assessment according to Annex I indicates the need to investigate
further the degradation of the substance. The choice of the appropriate
test(s) will depend on the results of the chemical safety assessment."
Waiving of the need for data for this
endpoint in the aquatic compartment (water and sediment) may be
considered if “The substance is highly insoluble in water”, or if “The
substance is readily biodegradable” (ECHA 2008, Chapter R.7B – Endpoint
However, for an inorganic substance
for which the chemical assessment is based on the elemental
concentration (i.e., pooling all inorganic speciation forms together),
biotic degradation is an irrelevant process: biotic processes may alter
the speciation form of an element, but it will not eliminate the element
from the aquatic compartment by degradation or transformation. This
elemental-based assessment (pooling all speciation forms together) can
be considered as a worst-case assumption for the chemical assessment.
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.
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