Correct answer
0.15 mg/l.
0.15 mg per litre of exhaled air. The corresponding blood limit is 0.3 g per litre. These are different quantities and units; a breath concentration should not be described as a blood concentration. The limits do not mean driving after drinking is safe: the safest option is to consume no alcohol before driving.
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0.15 mg/l.
0.30 mg/l.
0.50 mg/l.
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