Breathing Disorders Using Photoacoustics Gas Analyzer

The objective of the research was to estimate the risk of oxidative stress associated with ethylene breath at exposure to environmental tobacco smoke/passive smoking compared with current smoking/active smoking. Information was available for 30 subjects (15 active smokers, 15 passive smokers). The mixture of exhaled breath in passive human smokers contains relatively high concentration of ethylene compared to exhaled breath of healthy subjects. Breath samples from healthy subjects and from active/passive smoker volunteer's were collected using chemically inert aluminized bags and were subsequently analyzed using the spectroscopy technique. A significantly increased risk of oxidative stress was observed also at passive smokers compared with healthy lifelong non-smokers (without exposure to environmental tobacco smoke).