An implementation of model equations and default parameters for the
toxicokinetic-toxicodynamic (TKTD) model of the Lemna (duckweed) aquatic
plant. Lemna is a standard test macrophyte used in ecotox effect studies.
The model was described and published by the SETAC Europe Interest Group
Effect Modeling. It is a refined description of the Lemna TKTD model
published by Schmitt et al. (2013)