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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
For risk assessment of ammonium bicarbonate the total topic of ammonia toxicity was regarded. Species mean chronic values (SMCV), as given by U.S. EPA (1999) were considered as relevant endpoints. The lowest species mean chronic value (EC10, adjusted to pH 8 and 25°C) was 0.66 mg N/L = 3.7 mg/L Ammonium hydrogencarbonate for Hyalella azteca (Borgmann 1994). The adjusted species mean chronic values at pH = 8 and 25 °C for reproduction tests in Daphnia magna and Ceriodaphnia dubia are:
-Daphnia magna: adjusted species mean EC20 = 12.3 mg N/l i.e. 69.4 mg/l ammonium hydrogencarbonate
-Ceriodaphnia dubia: adjusted species mean EC20 = 13.5 mg N/l i.e. 76.2 mg/l ammonium hydrogencarbonate
Conclusion:
The EC10 of 3.7 mg/L for Hyalella azteca represents the most sensitive species mean chronic value for the assessment of chronic toxicity of ammonium to aquatic organisms and has consequently been used for the derivation of PNEC freshwater.
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.
