Grško: μέγιστη αποδεκτή συγκέντρωση στον ατμοσφαιρικό αέρα Angleško: MAC in the free environment, TLV in the free environment, maximum allowable concentration in the free environment, threshold limit value in the free environment Špansko: concentración máxima admisible en el aire ambiente Francosko: concentration maximale admissible dans l'air ambiant Italijansko: massima concentrazione ammissibile nell'atmosfera Portugalsko: concentração máxima admissível no ar ambiente