TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

The prescription of national ambient air quality objectives (NAAQO's) for Canada is provided for under the mandate of the Clean Air Act; these objectives are based on three levels of ambient air quality: 3) - the maximum tolerable level, which denotes a time-based concentration of an air contaminant beyond which, due to a diminishing margin of safety, appropriate action is required to protect the health of the general population.  2, fiche 1, Anglais, - maximum%20tolerable%20level

Record number: 1, Textual support number: 2 CONT

Carbon monoxide exceeds maximum tolerable levels in some downtown heavy traffic areas ...  3, fiche 1, Anglais, - maximum%20tolerable%20level

Record number: 1, Textual support number: 1 OBS

Usually used in the plural ("levels").  4, fiche 1, Anglais, - maximum%20tolerable%20level

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 CONT

Objectifs nationaux sur la qualité de l'air ambiant (ONQAA). Au Canada, le fondement législatif des objectifs nationaux sur la qualité de l'air ambiant découle de la Loi sur la lutte contre la pollution atmosphérique; les objectifs se fondent sur trois niveaux de qualité de l'air ambiant : [...] Teneur maximale admissible (en fonction du temps) : teneur de l'air en un polluant donné au-delà de laquelle la marge de sécurité risque d'être dépassée et qui commande des mesures appropriées afin de protéger la santé de la population.  1, fiche 1, Français, - teneur%20maximale%20admissible

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

Although there are no scientifically proven minimum safe limits for concentrations of certain toxic and carcinogenic chemicals in food, air and water, such "safe limits" in fact have been set by the appropriate food and drug administrations or their equivalents. The implication is that a dose of low-level radiation with no acceptable safe level is more health-threatening than a low-level dose of, for example, dioxin. In fact, the Task Force finds it is more reasonable to accept a maximum permissible level for ionizing radiation because background radiation is a ubiquitous, naturally occurring phenomenon, whereas there is no naturally occurring level of polychlorinated biphenyls.  1, fiche 2, Anglais, - maximum%20permissible%20level

Fiche 2,  Justifications,  Français

Fiche 2,  Justifications,  Espagnol