Final answer:
It is illegal to operate a vehicle in Ohio with a BAC of 0.08% or higher, in line with most US states. The Breathalyzer measures BAC levels, and the body metabolizes alcohol at a rate of about 0.015% per hour.
Step-by-step explanation:
In the state of Ohio, it is unlawful to operate a vehicle with a Blood Alcohol Concentration (BAC) level of 0.08% or higher. This limit is consistent with the legal limit for intoxication in most US states. A person's ability to drive becomes increasingly impaired with higher BAC levels, with 0.20% causing acute intoxication, unconsciousness at approximately 0.30%, and potentially fatal outcomes at 0.50%.
The Breathalyzer is commonly used to measure a person's BAC. Remember that after alcohol consumption stops, it takes the body, particularly the liver, a significant amount of time to metabolize the alcohol and reduce the BAC below the legal limit, as the liver breaks down alcohol at a rate of about 0.015% per hour.