Blood alcohol content (BAC), also known as blood alcohol concentration or blood alcohol level, is the concentration of alcohol in a person's blood, measured for legal or medical purposes. BAC is expressed as the mass of alcohol per unit volume of blood.
Blood alcohol content (BAC), also known as blood alcohol concentration or blood alcohol level, is the concentration of alcohol in a person's blood, measured for legal or medical purposes. BAC is expressed as the mass of alcohol per unit volume of blood.
Source: Wikipedia "Blood alcohol content" · CC BY-SA 4.0
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