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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to soil macroorganisms except arthropods

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
toxicity to soil macroorganisms except arthropods: long-term
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:

Description of key information

The study does not need to be conducted because direct and indirect exposure of the soil compartment is unlikely, see column 2 of REACH Annex IX, point 9.4.

Moreover, dilactide is rapidly hydrolysed to lactic acid. Lactic acid is therefore the only relevant species in the environment. Lactic acid is practically non-toxic to aquatic organisms. Corrected for the pH effect, no hazard was identified for lactic acid/lactate. This can be safely extrapolated to the terrestrial compartment. Therefore, based on the chemical safety assessment according to Annex I, testing of short-term or long-term toxicity to soil organisms is not required.

Key value for chemical safety assessment

Additional information

Dilactide has no potential for adsorption to soil, is not bioaccumulative but considered as readily biodegradable. For „readily biodegradable“ substances nearly complete elimination in the STP process can be safely assumed. Furthermore, adsorption to sludge can be considered as insignificant. Consequently, indirect exposure via sewage sludge need not be expected. Neither is direct exposure of soil expected.

According to REACH Regulation Annex IX, column 2 of section 9.4, toxicity to terrestrial organisms can be assessed by the equilibrium-partitioning method if no terrestrial data are available. Lactide is rapidly hydrolysed to lactic acid. Lactic acid is therefore the only relevant species in the environment. Lactic acid is practically non-toxic to aquatic organisms. Corrected for the pH effect, no hazard was identified for lactic acid/lactate. This can be safely extrapolated to the terrestrial compartment. Therefore, based on the chemical safety assessment according to Annex I and in accordance with column 2 of REACH annex X, section 9.4, testing of toxicity to soil organisms is not required.