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EC number: 256-032-2
CAS number: 42978-66-5
No data on sediment toxicity of TPGDA are available.
In Annex X, Section 9.5.1, of Regulation
(EC) No 1907/2006, it is laid down that chronic tests on sediment
organisms shall be proposed by the registrant if the chemical safety
assessment indicates the need to investigate further the effects on
sediment organisms. In Annex XI Section 3, it is laid down that
testing in accordance with sections 8.6 and 8.7 of Annex VIII and in
accordance with Annex IX and Annex X may be omitted, based on the
exposure scenario(s) developed in the Chemical Safety Report
(“Substance-Tailored Exposure-Driven Testing”). In accordance with Annex
XI Section 3, it can be demonstrated in the risk assessment that the
manufacture and the use of the substance do not pose an unacceptable
risk for all environmental compartments as the risk characterization
ratios (RCRs) of the chemical safety assessment are below 1 for all
compartments (see Chemical Safety Report Ch. 10). In addition, If the
log Koc and log Kow of the substance are below 3, a low adsorption
potential is indicated. In case of TPGDA, the log Koc for the molecule
is estimated to be in the range between 0.4 and 3 and thus indicates no
potential for adsorption (see IUCLID Ch. 5.4.1). Based on the low log
Kow and the low estimated BCF values, bioaccumulation in aquatic
organisms is not to be expected (see IUCLID Ch. 5.3.1 As a consequence,
a transfer to the sediment compartment is rather unlikely. Moreover,
according to the hazard assessment of the substance, it is not
classified as a PBT or vPvB the substance. Consequently, no test on
sediment organisms is performed. The equilibrium partitioning method has
been used for assessing the hazard to sediment organisms.
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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