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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Sediment toxicity

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Administrative data

Link to relevant study record(s)

Description of key information

Hydrogen peroxide is reactive and a polar substance with a short half-life, and the log KOW value of hydrogen peroxide is estimated at approximately –1.5. In regards of its high solubility in water, significant partition of hydrogen peroxide to the sediment is not expected (cf., European Union Risk Assessment Report: hydrogen peroxide; European Commission 2003; page 27).

Key value for chemical safety assessment

Additional information

Moreover, microbial activity, which is considered the key parameter of the rate of degradation of hydrogen peroxide in aquatic systems, is known to be particularly high at the boundary layer between the water and the sediment phase. Therefore, concentrations of hydrogen peroxide in the sediment and also risk to sediment organisms are considered to be negligible. In consideration of these points, testing on sediment dwelling organisms is deemed not necessary. This statement is also supported by the calculated bioconcentration factors for fish and earthworm of 1.4 and 3.3, respectively.