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Blood alcohol content (BAC), also called blood alcohol concentration or blood alcohol level, is a measurement of alcohol intoxication used for legal or medical purposes. [1] BAC is expressed as mass of alcohol per volume of blood. In US and many international publications, BAC levels are written as a percentage such as 0.08%, i.e. there is 0.8 ...
England and Wales and Northern Ireland: 80 mg/100 mL (~0.08% BAC) alcohol in blood, 35 μg/100 mL alcohol in breath or 107 mg/100 mL alcohol in urine. [ 129 ] [ 130 ] Scotland : 50 mg/100 mL (~0.05% BAC) alcohol in blood or 22 μg/100 mL alcohol in breath (legislation became effective from 5 December 2014) [ 131 ]
Under conditions of moderate alcohol consumption where blood alcohol levels average 0.06–0.08 percent and decrease 0.01–0.02 percent per hour, an alcohol clearance rate of 4–5 hours would coincide with disruptions in sleep maintenance in the second half of an 8-hour sleep episode.
Map of Europe showing countries' blood alcohol limits (the "drink-drive" limit) as defined in g/dl (grams per decilitre). A decilitre is 100 millilitres, or one tenth of a litre. 10 mg/100ml is 0.1g/l is 0.01 g/dl. Figures for a fully qualified driver – some countries enforce lower limits for newly qualified and/or professional drivers.
Drunk driving is the act of operating a motor vehicle with the operator's ability to do so impaired as a result of alcohol consumption, or with a blood alcohol level in excess of the legal limit. [1] For drivers 21 years or older, driving with a blood alcohol concentration (BAC) of 0.08% or higher is illegal.
I could see how someone might get the impression that .08 grams per deciliter of blood was the same volume as .08 mg/L of breath, so I changed the values to reflect the same volume for each unit of measure mentioned. (i.e., 0.10 g/dL of blood alcohol is the same BAC as 0.476 mg/L of breath alcohol and the same as 0.10 g/210L of breath alcohol).
Earlier studies found mean elimination rates of 15 mg/dL per hour for men and 18 mg/dL per hour for women, [6] [4] but Jones found 0.148 g/L/h and 0.156 g/L/h respectively. Although the difference between sexes is statistically significant, it is small compared to the overall uncertainty, so Jones recommends using the value 0.15 for the mean ...
One systematic analysis found that "The level of alcohol consumption that minimised harm across health outcomes was zero (95% UI 0·0–0·8) standard drinks per week". [35] Supposing the apparent beneficial effects found in observational studies are genuine, these effects are maximized at relatively low levels of consumption, ranging from 1-18 ...