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Toxicity to terrestrial plants

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toxicity to terrestrial plants: long-term
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study scientifically not necessary / other information available
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DD-lactide is rapidly hydrolysed to lactic acid. Lactic acid is therefore the only relevant species in the environment. Lactic acid is readily biodegradable and is a ubiquitous and essential molecule of life. It will not adsorb to soil (see 5.4.1). Direct and indirect exposure of the soil compartment is unlikely, and thus the study does not need to be conducted, see column 2 of REACH Annex IX, point 9.4.

Moreover, 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 and long-term toxicity to terrestrial plants is not required.

Key value for chemical safety assessment

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