Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 213-911-5 | CAS number: 1066-33-7
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
Acute harmful to fish
Key value for chemical safety assessment
Additional information
For risk assessment of ammonium hydrogencarbonate the total topic of ammonia toxicity was regarded. Species mean acute values (SMAV), as given by U.S. EPA (1999) were considered as relevant endpoints. The lowest species mean adjusted total ammonia nitrogen acute value among the 29 fish species acute toxicity results presented by U.S. EPA (1999) was obtained for large rainbow trout (Oncorhynchus mykiss) by Thurston and Russo (1983): LC50 (96 h) at pH 8 = 11.23 mg N/L, i.e. 63.4 mg/L for ammonium hydrogencarbonate. Thurston and Russo (1983) conducted numerous acute toxicity tests with larval, juvenile, yearling, and larger rainbow trout and demonstrated that large rainbow trout were measurably more sensitive than other life stages. Therefore, even if the standard methods use juvenile trout, it appears more relevant to use this species mean acute value of 11.23 mg N/L i.e. 63.4 mg/L ammonium hydrogencarbonate, in order to protect large rainbow trout. For non-salmonids, the lowest species mean adjusted total ammonia nitrogen acute value at pH 8 was obtained for Mountain whitefish (Prosopium williamsoni) : LC50 (96h) at pH 8 = 12.11 mg N/L, i.e. 68.4 mg/L for ammonium hydrogencarbonate.
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.
