Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

There are no reliable toxicity data for soil-dwelling organisms relating to p-tert-amylphenol. A waiver is applied for this endpoint as direct and indirect exposure of soil is unlikely.

In Annex X of Regulation (EC) No 1907/2006, it is laid down that long-term toxicity to terrestrial organisms shall be proposed by the registrant if the chemical safety assessment indicates the need to investigate further the effects of the substance and/or relevant degradation products on terrestrial organisms. Column 2 of Annex X states that studies do not need to be conducted if direct and indirect exposure of the soil compartment is unlikely.

The test substance is not supposed to be applied directly to soil. Reliable biodegradation study results indicate that although the substance is not considered readily biodegradable, the test substance biodegrades rapidly once microbes have had a chance to acclimate. Study results indicate the test substance is inherently biodegradable. Use of the substance does not include direct exposure to sediment. All sludges related to the use of p-tert-amylphenol will be through industrial WWTP as the substance is used as an intermediate. It can be assumed that p-tert-amylphenol will be biodegraded within the STP process and as a consequence a transfer to the soil compartment via sewage sludge is not expected. Any release to wastewater treatment plant or soil from residual p-tert-amylphenol in resin is negligible. Therefore, no tests on terrestrial organisms are provided.