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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Ecotoxicological information

Short-term toxicity to fish

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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.