Calculated value of a chemical in the environment on the basis of exposure models such as the European Union System for the Evaluation of Substances (EUSES). Used in the context of Chemical Safety Assessments (CSA) and referenced in Chemical Safety Reports (CSR).<unk> s may be compared with Measured<unk>  Concentrations (MEC) if available.
Predicted environmental concentration
Measured environmental concentration
Effective dose 
Absorbed dose
Equivalent dose
Minimum alveolar concentration
Maximum acceptable toxicant concentration
Banana equivalent dose