Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Lactic acid will be present predominantly in aqueous compartments, it is unlikely to bioaccumulate or bioconcentrate, and it is rapidly degradable, therefore non-persistent.

Physico-chemical properties of enantiomers are essentially identical, except for those dependent on a chiral environment (e. g. rotation of plane of polarization of polarized light, i. e. optical activity). Most if not all environmental fate processes take place in a non-chiral or 'racemic' environment, and thus will not discriminate between enantiomers. L- and D-lactic acid are both ubiquitous constituents of biological systems and are produced and metabolized a. o. by many bacteria. As such, both L- and D-lactic acid are completely biodegradable. Therefore, data for L-lactic acid are fully valid for D-lactic acid, and hence for general lactic acid.