Blood alcohol concentration (bac) is defined as the ration of alcohol in the system to blood in the system.Also called blood alcohol concentration or blood alcohol level . The amount of alcohol which is present in the bloodstream.
A Blood alcohol concentration of 0.05% =0.05grams of Alcohol in every 100 milliliters of blood.It can be measured by breath,blood,or urine tests.High the percentage of alcohol higher the blood alcohol concentration. Levels can range from 0% to over 0.4% (a potentially fatal level).
It is a measurement of alcohol intoxication used for legal or medical purposes.There are some factors also which affects the blood alcohol concentration like - Age ,Tolerance, Metabolism, Medication,body, weight, etc
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