Registration Dossier
Registration Dossier
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EC number: 206-114-9 | CAS number: 302-01-2
Toxicity to birds
Administrative data
Link to relevant study record(s)
- Endpoint:
- long-term toxicity to birds
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
Reference
Description of key information
In accordance with Section 1 of REACh annex XI, a test on toxicity to birds does not need to be conducted as it is scientifically unjustified. No appropriate avian toxicology data are available for hydrazine. Avian toxicity data are commonly used for the assessment of secondary poisoning risks for the aquatic and terrestrial food chains, and are required for substances for which an indication for bioaccumulation potential exists (ECHA, R.7c, 2008). Hydrazine is characterized by a logPow of -0.16 and is highly soluble in water implying that accumulation in biota is unlikely due to the partitioning behaviour of the test item and its physico-chemical properties. Furthermore, the degradability of a substance strongly determines its ability to bioaccumulate in organisms. Hydrazine concentrations in the natural waters rapidly decrease reducing the exposure of aquatic organisms towards the test item. Concluding, based on these properties no adverse effects to birds are expected originating from bioaccumulation in food chains. There is no need for testing.
Key value for chemical safety assessment
Additional information
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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