Registration Dossier
Registration Dossier
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EC number: 927-870-2 | CAS number: -
Toxicity to soil macroorganisms except arthropods
Administrative data
Link to relevant study record(s)
Description of key information
The effect of the test item on the earthworm reproduction was assessed according to an OECD test n°222. The results obtained allowed to conclude that, taking into account the mortality, the growth and the reproduction of the exposed adults test organisms, the highest concentration of the test item without inhibitory effect on Eisenia fetida after the test period was determined to be, at least, 1 000.0 mg/ kg dry soil (highest tested concentration).
Key value for chemical safety assessment
- Long-term EC10, LC10 or NOEC for soil macroorganisms:
- 1 000 mg/kg soil dw
Additional information
According to ECHA guide R7C, the test species should ideally cover different habitats and feeding modes in the soil as well as different taxonomic groups. For strongly adsorbing or binding substances soil-dwelling organisms that feed on soil particles (e.g. earthworms) are most relevant. Plants are exposed mainly by a soil pore water pathway, whearas earthworms are exposed to the substance by diverse and multiple uptake routes (soil pore water, ingestion of soil material, soil air, secondary poisoning). Furthermore, the substances in the category are highly insoluble; for uptake by plants, the substance needs to go into solution (interstitial or pore water) before exposure can occur, therefore testing the substances in plants is considered irrelevant. So other terrestrial test are not needed.
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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