Blood Alcohol Concentration (BAC)
PDF 80 KB
Explains how BAC relates to alcohol-related behaviour.
There is a relationship between the concentration of alcohol in the blood (blood alcohol concentration - BAC) and the effects of alcohol, although this varies between individuals.
In a person of average build, one standard drink will raise the BAC by approximately 0.01 to 0.03% in an hour. See the standard drinks guide on the Australian government's alcohol website.
The body will only process one standard drink per hour. This means, for every standard drink you have, it will take one hour for your BAC to go back to 0.00.
BAC can be used as a guide to what effects alcohol may have on behaviour. People who drink alcohol regularly may show less effect at higher BAC.