> The human body constantly produces small amounts of alcohol itself. Normal levels of 0.01 to 0.03 mg of alcohol/100 ml are contained in the blood. By contrast, a blood alcohol limit for driving of 0.05 per cent is equal to around 50 mg of alcohol/100 ml of blood.
Thus, according to my definition, 100% of drivers have a statistically significant amount of alcohol in their blood system, though nowhere near to the level of impairment.
FWIW, http://www.allergy.org.au/patients/product-allergy/alcohol-a... says:
> The human body constantly produces small amounts of alcohol itself. Normal levels of 0.01 to 0.03 mg of alcohol/100 ml are contained in the blood. By contrast, a blood alcohol limit for driving of 0.05 per cent is equal to around 50 mg of alcohol/100 ml of blood.
Thus, according to my definition, 100% of drivers have a statistically significant amount of alcohol in their blood system, though nowhere near to the level of impairment.