In the UK the drink driving limit is:
35 micrograms of alcohol in 100 millilitres of breath; or
80 milligrams of alcohol per 100 millilitres of blood; or
107 milligrams of alcohol per 100 millilitres of urine.
The legal drink drive limit cannot be safely converted into a certain number of units, as it depends on a number of factors to include gender, body mass and how quickly your body absorbs alcohol into the blood stream.
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