Registration Dossier
Registration Dossier
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EC number: 231-765-0 | CAS number: 7722-84-1
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
The lowest LC50 value for hydrogen peroxide was found in the most reliable study on acute toxicity of the substance to Pimephales promelas (Shurtleff 1989). The LC50 was 16.4 mg/L.
Key value for chemical safety assessment
Additional information
According to the EU Risk Assessment Report for hydrogen peroxide (European Commission 2003), three tests on the acute toxicity of hydrogen peroxide to three fish species are available. Acute LC50 values for fish range from 16.4 to 37.4 mg/L. The test with the lowest LC50 for Pimephales promelas (Shurtleff 1989) was done according to US EPA guidelines, the test solution was renewed and the concentration of the test substance was measured every 24 hours. The other two LC50 values for fish are somewhat higher but the results are based on nominal concentrations. Taking into account the instability of the test substance these two results cannot be considered as reliable. The LC50 value of 16.4 mg/L for Pimephales promelas will be taken into consideration with the test results of other taxonomic groups for the derivation of PNEC for the aquatic environment.
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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