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Toxicity to terrestrial plants

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toxicity to terrestrial plants: long-term
Data waiving:
other justification
Justification for data waiving:
according to guideline
OECD Guideline 208 (Terrestrial Plants Test: Seedling Emergence and Seedling Growth Test)
Principles of method if other than guideline:
Adsorption and desorption behaviour of the cyclic constituent is not yet fully understood. Once that process is complete, if it is confirmed that desorption from soil occurs in vitro for this constituent of the substance, then a study in higher plants may be useful to refine the PNEC. At Annex IX, a seedling emergence and growth test is required. The test could be conducted on whole substance of known composition, representative of the supplied substance, or on a purified sample of the cyclic constituent and this would be explored as part of test planning. The acid or a sodium salt form at appropriate pH could be used in testing and the results read across to the registration substance.

Description of key information

In line with ECHA final decision number CCH-D-2114493149-38-01/F, an Integrated Testing Strategy (ITS) approach is applied. The decision to conduct a terrestrial plants study shall be made after a review of the terrestrial RCRs, after new data from OECD 222 and 216 studies are available in 2022.

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