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Ecotoxicological information

Toxicity to terrestrial plants

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Description of key information

No toxicity data are currently available for terrestrial plants. The terrestrial chemical safety assessment has been conducted using measured data from OECD 222 and OECD 216 tests and this approach is considered reliable.

Key value for chemical safety assessment

Additional information

In accordance with Column 2 of REACH Annex IX, there is no need to further investigate the effects of this substance in terrestrial toxicity to higher plants studies because, as indicated in guidance R7c (Section R.7.11.6) (ECHA 2017), the quantitative chemical safety assessment (conducted according to Annex I of REACH) indicates that the Risk Characterisation Ratio is below 1, therefore the risk is already adequately controlled and further testing is not justifiable.   The substance is involatile and highly adsorbing and low toxicity was observed in short-term aquatic tests, and there is no reason to expect effects in the terrestrial compartment that were not expressed in the aquatic compartment.  Based on the short-term aquatic data set, the most sensitive trophic level is algae. The soil hazard category 3 (ECHA 2017, guidance part R7(c) Table R.7.11—2) has been derived for the HMDTMP category. The PNECsoil has been calculated from measured data, from two reliable terrestrial studies (OECD 222 and 216) and an assessment factor of . The PNEC derived from measured data has been derived for the purpose of deriving a chemical safety assessment and the risk characterisation ratios are below 1.  Details on how the PNEC and the risk characterisation ratio have been derived can be found in IUCLID Section 6.0 and Chapters 9 and 10 of the Chemical Safety Report, respectively.