What is my Blood Alcohol Concentration?
Your Blood Alcohol Concentration (BAC) is a measure of the amount of alcohol in your blood.
A breathalyser is the piece of equipment that measures the amount of alcohol in a person’s breath, which is a direct (but not entirely exact) measure of the amount in your blood.
BAC is determined by the amount a person drinks and over what period of time. But the amount, and the time, that will result in a BAC over the legal limit differ with every individual.
To keep your BAC under the limit of .05 – if that’s the legal limit in your State – the general guideline is to consume no more than two standard drinks in the first hour and no more than one an hour after that.
If the legal limit in your State is .02 the best advice is not to drink alcohol at all – and certainly no more than one standard drink.
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