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| San Diego DUI Lawyers Report Breathalyzers Don't M |
Don't get arrested for drunk driving.
Arrested for drunk driving? Breathalyzers do not actually measure alcohol -- and thus may produce falsely high "blood alcohol" readings.
Most alcohol breath testers used in DUI cases byprosecutorstoday use "infrared spectroscopy". This technology involves detection of the "methyl group" in the molecular structure of alcohol. The problem is that there are thousands of chemical compounds containing the methyl group -- some of them found on the human breath. In one study involving 28 subjects, for example, researchers found that the "combined expired air comprises at least 102 various organic compounds of endogenous and exogenous origin" ("Characterization of Human Expired Air", 15 Journal of Chromatographic Sciences 240).
And if there are two or more such compounds on his breath, the machine will add them up and falsely report the total as the blood- alcohol level.
If you are a smoker, you will blow a much higher result than a nonsmoker. The compound acetaldehyde -- containing the methyl group and so reported by the Breathalyzer as "alcohol" -- is produced in the human body as a by-product in metabolizing consumed alcohol, and eventually passes into the lungs and breath. Researchers have discovered that levels of acetaldehyde in the lungs can be 30 times higher in smokers than in non-smokers. Result: higher BAC readings on the machine.
If you want to try the AlcoHAWK Pro, its got a very good indication of how accurate these other changes can be
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Posted by dabt393ow on 2009-10-11 15:52:37 | Rating: | Views: 10
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