Final answer:
The legal limit for alcohol in the bloodstream is usually a BAC of 0.08%, which equates to 80 mg of alcohol per deciliter of blood. The liver metabolizes alcohol at a rate of about 15 mg/dL per hour, but this can vary by individual.
Step-by-step explanation:
The legal limit for alcohol in the bloodstream is typically expressed in terms of Blood Alcohol Concentration (BAC). The legal threshold for being considered under the influence of alcohol in most jurisdictions, especially for driving, is a BAC of 0.08%. This translates to 80 milligrams of alcohol per deciliter of blood (80 mg/dL), or 0.08 grams per 100 milliliters of blood. It's important to note that these limits are set to reduce the risks associated with drinking and driving and may vary slightly depending on the country or state. Alcohol metabolism plays a crucial role in reducing BAC over time. The liver metabolizes alcohol at an approximate rate of 15 mg/dL per hour, but this rate can vary among individuals. Factors contributing to different metabolism rates include gender, body size, and the amount of food consumed beforehand. To avoid alcohol toxicity, it's essential to allow the liver enough time to fully metabolize the ingested alcohol. Remember, consuming alcohol should be done in moderation, if at all, keeping in mind the legal limits and personal health considerations.