Registration Dossier
Registration Dossier
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EC number: 911-811-2 | CAS number: -
Toxicity to terrestrial arthropods
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to non-target arthropods on natural substrate (NTA other than pollinators)
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
Reference
Description of key information
Key value for chemical safety assessment
Additional information
In accordance with Column 2 of REACH Annex IX, there is no need to further investigate the effects of this substance in terrestrial toxicity to arthropods studies because, as indicated in REACH guidance R7c Section R.7.11.6 (ECHA 2017), the quantitative chemical safety assessment (conducted according to Annex I of REACH) indicates that the Risk Characterisation Ratio is below 1, therefore the risk is already adequately controlled and further testing is not justifiable. The substance is involatile and highly adsorbing and low toxicity was observed in short and long-term aquatic tests, and there is no reason to expect effects in the terrestrial compartment that were not expressed in the aquatic compartment. Based on the short- and long-term aquatic data set, the most sensitive trophic level is algae. The soil hazard category 3 (ECHA 2017, guidance part R7(c) Table R.7.11—2) has been derived for this category. According to the screening assessment for soil hazard category 3, the PNECsoil has been calculated from the aquatic data on the basis of the equilibrium partitioning method and a confirmatory long-term toxicity study with terrestrial invertebrates and a soil nitrogen transformation study have been commissioned. The PNEC derived by Equilibrium Partitioning has been derived for the purpose of deriving a chemical safety assessment and the risk characterisation ratios are below 1. The PNECsoil will be updated when the new terrestrial data become available. Details on how the PNEC and the risk characterisation ratio have been derived can be found in IUCLID Section 6.0 and Chapters 9 and 10 of the Chemical Safety Report, respectively.
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.
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